Best Books To Prepare For GATE Geology & Geophysics (GG) Examination

When Should I Start Preparation For GATE Geology & Geophysics (GG)

The best time to start preparing for GATE Geology & Geophysics (GG) is the first time you heard or thought about it while purshuing graduate degree in engineering. Now as per our experience, there are mainly 5 different time-period in which students normally hear or think about GATE Geology & Geophysics (GG) Exam. Identify your time-period and start preparing accordingly.

Steps And Strategy To Prepare For GATE Geology & Geophysics (GG) Exam

1. Take a diagnostic test – best diagnostic test is a GATE paper of any of the previous 3 years.
2. Note down what you have scored and what was the actual GATE qualifying score cut-off. Note that qualification does not help you much. What you need is a good score. So note the good score mentioned above and measure the gap between your score and a good score.
3. Note the GATE syllabus and mark your topics that you are good at. First try to master subjects that you are good at.
4. However, some subjects like REMOTE SENSING & HYDROGEOLOGY, and STRUCTURAL GEOLOGY have a high weightage. So you should definitely prepare these.
5. General Aptitude does not require preparation. It requires practice. So just practice solving Aptitude questions every day for 30 minutes.
6. Take lots of section tests and Mocks. Career Avenues provides an excellent test series for GATE Geology & Geophysics (GG). For more details click here.
7. In case you require focused GATE study material and books, you should take Career Avenues GATE Geology & Geophysics (GG) study material which has been made by IIT alumni and is focused towards GATE. For more details click here.

Best Study Material For GATE Geology & Geophysics (GG) Exam Preparation In India

There are two types of GATE Geology & Geophysics (GG) Exam Preparation Study Material:

1. Single Books for entire GATE Geology & Geophysics (GG) Branch
   &
2. A Set Of Books (typically broken-up subject wise) for GATE Geology & Geophysics (GG) Branch.

About GATE Geology & Geophysics

• Geology and Geophysics is a branch which is offered in most of the top IITs and NITs, the premier among them being IISc, IIT-Mumbai, IIT-Madras, IIT-Delhi and IIT Kharagpur. Courses like Applied Geology, Earth Sciences, Petroleum Geoscience, etc. are very popular.
• Students pursuing graduation in Geology and Geophysics can answer the GATE Geology and Geophysics paper. The test is different for Geology and Geophysics students. General Aptitude is common to both branches. A little bit of portion is common to both branches as well. The Geology paper focuses on subjects like Petrology, Crystallography, Geomorphology, Ore Geology, Structural Geology, etc. The Geophysics paper focuses on subjects like Seismology, Magnetics Fields, EM, Gravity and Measurements, Electrical Fields and Conductivity, etc.
• Students who qualify in the GATE exam can apply to these colleges. GATE score is also valid for quite a few companies like ONGC, SAIL, GAIL, BARC, Coal India Ltd. etc.
• Career Avenues GATE Coaching provides best training for GATE Geology, and the syllabus common to with Geophysics. Career Avenues does not provide any program for purely students focusing on GATE Geophysics.
• Our students have consistently secured within AIR 100, over the last many years.
• You can find more details using link given below:

Go To Main GATE Geology & Geophysics Page   

If you wish to know more about GATE Geology & Geophysics Tests, GATE 2019, GATE 2020 and GATE 2021 Coaching, Study Material, Books, Videos & Tests Courses then click on the quick links given at the bottom of this page. If you have any questions regarding GATE Geology & Geophysics Course Enrollment you can Call Us or Whatsapp Chat With Us or Message Us; details are given at the bottom of this page. Furthermore; you can visit any of our Mumbai GATE Coaching, Delhi GATE Coaching, Chennai GATE Coaching, Chandigarh GATE Coaching, Ludhiana GATE Coaching, Jalandhar GATE Coaching, Hyderabad GATE Coaching and Trivandtrum GATE Coaching center office for counseling.CAREER AVENUES

1. Being a GATE aspirant, it is very important that you first know what is the syllabus for GATE Geology & Geophysics (GG) Examination before you start preparation.
2. Keep handy the updated copy of GATE Geology & Geophysics (GG) Examination syllabus.
3. Go through the complete and updated syllabus, highlight important subjects and topics based on Past GATE Geology & Geophysics (GG) Papers and Weightage plus your understanding of particular subject or topic.
4. Keep tracking and prioritising your preparation-to-do list and the syllabus for the GATE Geology & Geophysics (GG) examination.

GATE 2018 Geology & Geophysics (GG) Syllabus
Part-A: Common Section

Earth and planetary system – terrestrial planets and moons of the solar system; size, shape, internal structure and composition of the earth; concept of isostasy; elements of seismology – body and surface waves, propagation of body waves in the earth’s interior; Heat flow within the earth; Gravitational field of the Earth; geomagnetism and paleomagnetism; continental drift; plate tectonics – relationship with earthquakes, volcanism and mountain building; continental and oceanic crust – composition, structure and thickness.

Weathering and soil formation; landforms created by river, wind, glacier, ocean and volcanoes.

Basic structural geology – stress, strain and material response; brittle and ductile deformation; nomenclature and classification of folds and faults.

Crystallography – basic crystal symmetry and concept of point groups. Mineralogy – silicate crystal structure and determinative mineralogy of common rock forming minerals.

Petrology of common igneous, sedimentary and metamorphic rocks.

Geological time scale; Geochronology and absolute time. Stratigraphic principles; major stratigraphic divisions of India.

Mineral, coal and petroleum resources of India.

Introduction to remote sensing. Engineering properties of rocks and soils. Elements of hydrogeology.

Principles and applications of gravity, magnetic, electrical, electromagnetic, seismic and radiometric methods of prospecting for oil, mineral and ground water; introductory well logging.

Part-B (B1): Geology

Geomorphology: Geomorphic processes and agents; development and evolution of landforms in continental and oceanic settings; tectonic geomorphology.

Structural Geology: Forces and mechanism of rock deformation; primary and secondary structures; geometry and genesis of planar and linear structures (bedding, cleavage, schistosity, lineation); folds, faults, joints and unconformities; Stereographic projection; shear zones, thrusts and superposed folding; basement-cover relationship. Interpretation of geological maps.

Crystallography and Mineralogy: Elements of crystal symmetry, form and twinning; crystallographic projection; crystal chemistry; classification of minerals, physical and optical properties of rock- forming minerals.

Geochemistry: Cosmic abundance of elements; meteorites; geochemical evolution of the earth; geochemical cycles; distribution of major, minor and trace elements in crust and mantle; elements of high temperature and low temperature geochemical thermodynamics; isotopic evolution of the crust and the mantle, mantle reservoirs; geochemistry of water and water-rock interaction.

Igneous Petrology: Classification, forms, textures and genesis of common igneous rocks; magmatic differentiation; binary and ternary phase diagrams; major and trace elements as monitors of partial melting and magma evolutionary processes. Mantle plumes, hotspots and large igneous provinces.

Sedimentology: Texture, structure and sedimentary processes; petrology of common sedimentary rocks; Sedimentary facies and environments, cyclicities in sedimentary succession; provencance and basin analysis. Important sedimentary basins of India.

Metamorphic Petrology: Structures and textures of metamorphic rocks. Physico-chemical conditions of metamorphism and concept of metamorphic facies, grade and baric types; chemographic projections; metamorphism of pelitic, mafic and impure carbonate rocks; role of bulk composition including fluids in metamorphism; thermobarometry and metamorphic P- T-t paths, and their tectonic significance.

Paleobiology: Diversity of life through time, mass extinctions- causes and effects; taphonomy- processes of fossilization. Taxonomy. Morphology and functional morphology of invertebrates (bivalves, brachiopods, gastropods, echinoids, ammonites); microfossils (foraminifera, ostracoda, conodonts, bryozoa); Vertebrate paleonology (Equus, Probicidea, Human); Paleobotany (plant, spores, pollens). Basic concepts of ecology/paleoecology; classification – ecological and taxonomic schemes (diversity and richness). Fossils and paleoenvironments.

Stratigraphy: Principles of stratigraphy and concepts of correlation; Lithostratigraphy, biostratigraphy and chronostratigraphy. Principles of sequence stratigraphy and applications. Stratigraphy of peninsular and extra-peninsular India. Boundary problems in Indian stratigraphy.

Resource Geology: Ore-mineralogy; ore forming processes vis-à-vis ore-rock association (magmatic, hydrothermal, sedimentary, supergene and metamorphogenic ores); fluid inclusions as ore genetic tools. Coal and petroleum geology; marine mineral resources. Prospecting and exploration of economic mineral deposits – sampling, ore reserve estimation, geostatistics, mining methods. Ore dressing and mineral economics. Distribution of mineral, fossil and nuclear fuel deposits in India.

Global Tectonics: Plate motions, driving mechanisms, plate boundaries, supercontinent cycles.

Applied Geology: Physico-mechanical properties of rocks and soils; rock index tests; Rock failure criteria (Mohr-Coulomb, Griffith and Hoek-Brown criteria); shear strength of rock discontinuities; rock mass classifications (RMR and Ǫ Systems); in-situ stresses; rocks as construction materials; geological factors in the construction of engineering structures including dams, tunnels and excavation sites. Analysis of slope stability.

Natural hazards (landslide, volcanic, seismogenic, coastal) and mitigation. Principles of climate change.

Hydrogeology: Groundwater flow and exploration, well hydraulics and water quality.

Basic Principles of Remote Sensing: energy sources and radiation principles, atmospheric absorption, interaction of energy with earth’s surface, aerial-photo interpretation, multispectral remote sensing in visible, infrared, thermal IR and microwave regions, digital processing of satellite images. GIS – basic concepts, raster and vector mode operations.

Part-B (B2): Geophysics

Solid-Earth Geophysics: The earth as a planet; different motions of the earth; gravity field of the earth, Clairaut’s theorem, size and shape of earth; geomagnetic field, paleomagnetism; Geothermics and heat flow; seismology and interior of the earth; variation of density, velocity, pressure, temperature, electrical and magnetic properties of the earth.

Geodesy: Gravitational Field of the Earth; Geoid; Ellipsoid; Geodetic Reference Systems; Datum; Everest (1830) and WGS 84 (1984) systems; GPS and DGPS; Levelling and Surveying.

Earthquake Seismology: Elements of elasticity theory- stress and strain tensors, Generalized Hooke’s Law; Body and Surface Waves; Rotational, dilatational, irrorational and equivolumnal waves. Reflection and refraction of elastic waves; Inhomogenous and evanescent waves and bounded waves; Eikonal Equation and Ray theory; earthquakes- causes and measurements, magnitude and intensity, focal mechanisms; earthquake quantification, source characteristics, seismotectonics and seismic hazards; digital seismographs, Earthquake statistics, wave propogation in elastic media, quantifying earthquake source from seismological data. Elements of Seismic Tomography.

Potential and Time Varying Fields: Scalar and vector potential fields; Laplace, Maxwell and Helmholtz equations for solution of different types of boundary value problems in Cartesian, cylindrical and spherical polar coordinates; Green’s theorem; Image theory; integral equations in potential and time-varying field theory.

Gravity Methods: Absolute and relative gravity measurements; Gravimeters; Land, airborne, shipborne and bore-hole gravity surveys; Tensorial Gravity sensors and surveys; various corrections for gravity data reduction – free air, Bouguer and isostatic anomalies; density estimates of rocks; regional and residual gravity separation; principle of equivalent stratum; data enhancement techniques, upward and downward continuation; derivative maps, wavelength filtering; preparation and analysis of gravity maps; gravity anomalies and their interpretation – anomalies due to geometrical and irregular shaped bodies, depth rules, calculation of mass.

Magnetic Methods: Elements of Earth’s magnetic field, units of measurement, magnetic susceptibility of rocks and measurements, magnetometers and magnetic gradiometers, Land, airborne and marine magnetic and magnetic gradiometer surveys, Various corrections applied to magnetic data, IGRF, Reduction to Pole transformation, Poisson’s relation of gravity and magnetic potential field, preparation of magnetic maps, upward and downward continuation, magnetic anomalies due to geometrical and irregular shaped bodies; Image processing concepts in processing of magnetic anomaly maps; Depth rules; Interpretation of processed magnetic anomaly data; derivative, analytic signal and Euler Depth Solutions. Applications of gravity and magnetic methods for mineral and oil exploration.

Electrical Methods: Conduction of electricity through rocks, electrical conductivities of metals, non- metals, rock forming minerals and different rocks, concepts of D.C. resistivity measurement and depth of investigation; Apparent Resistivity and Apparent Chargeability, Concept of Negative Apparent Resistivity and Negative Apparent Chargeability; Theory of Reciprocity, Sounding and Profiling, Various electrode arrangements, application of linear filter theory, Sounding curves over multi-layered earth, Dar-Zarrouk parameters, reduction of layers, Triangle of anisotropy, interpretation of resistivity field data, Principles of equivalence and suppression, self-potential method and its origin; Electrical Resitivity Tomography (ERT); Induced polarization, time and frequency domain IP measurements; interpretation and applications of SP, resistivity and IP data sets for ground-water exploration, mineral exploration, environmental and engineering applications.

Electromagnetic Methods: Geo-electromagnetic spectrum; Biot Savart’s Law; Maxwell’s Equation, Helmotz Equation, Basic concept of EM induction in the earth, Skin-depth, elliptic polarization, in-phase and quadrature components, phasor diagrams; Response function and response parameters; Ground and Airborne Methods, measurements in different source- receiver configurations; Earth’s natural electromagnetic methods-tellurics, geomagnetic depth sounding and magnetotellurics; Electromagnetic profiling and Sounding, Time domain EM method; EM scale modelling, processing of EM data and interpretation; Ground Penetrating Radar (GPR) Methods; Effect of conducting overburden; Geological applications including groundwater, mineral environmental and hydrocarbon exploration.

Seismic Methods: Elastic properties of earth materials; Reflection, refraction and CDP surveys; land and marine seismic sources, generation and propagation of elastic waves, velocity – depth models, geophones, hydrophones, digital recording systems, digital formats, field layouts, seismic noise and noise profile analysis, optimum geophone grouping, noise cancellation by shot and geophone arrays, 2D, 3D and 4D seismic data acquisition, processing and interpretation; CDP stacking charts, binning, filtering, static and dynamic corrections, Digital seismic data processing, seismic deconvolution and migration methods, attribute analysis, bright and dim spots, seismic stratigraphy, high resolution seismics, VSP, AVO, multi-component seismics and seismic interferometry.

Reservoir geophysics: Rock Physics and Petrophysics, Geophysical Survey Design.

Geophysical Signal Processing: Sampling theorem, Nyquist frequency, aliasing, Fourier series, periodic waveform, Fourier and Hilbert transform, Z-transform and wavelet transform; power spectrum, delta function, auto correlation, cross correlation, convolution, deconvolution, principles of digital filters, windows, poles and zeros.

Geophysical Well Logging: Principles and techniques of geophysical well-logging, SP, resistivity, induction, gamma ray, neutron, density, sonic, temperature, dip meter, caliper, nuclear magnetic resonance- longitudinal and transverse relaxation, CPMG sequence, porosity characterization, cement bond logging, micro-logs. Pulsed Neutron Devices and Spectroscopy Multi-Array and Triaxial Induction Devices; Ǫuantitative evaluation of formations from well logs; Logging while drilling; High angle and horizontal wells; Clay Ǫuantification; Lithology and Porosity Estimation; Saturation and Permeability Estimation; application of bore hole geophysics in ground water, mineral and oil exploration.

Radioactive Methods: Prospecting and assaying of mineral (radioactive and non-radioactive) deposits, half-life, decay constant, radioactive equilibrium, G M counter, scintillation detector, semiconductor devices, application of radiometric for exploration, assaying and radioactive waste disposal.

Geophysical Inversion: Basic concepts of forward and inverse problems, Ill-posedness of inverse problems, condition number, non-uniqueness and stability of solutions; L1, L2 and Lp norms, over determined, underdetermined and mixed determined inverse problems, quasi- linear and non-linear methods including Tikhonov’s regularization method, Singular Value Decomposition, Backus-Gilbert method, simulated annealing, genetic algorithms, swarm intelligence, machine learning and artificial neural networks. Statistics of misfit and likelihood, Bayesian construction of posterior probabilities, sparsity promoting L1 optimization. Ambiguity and uncertainty in geophysical interpretation.

How Should I Start My GATE Geology & Geophysics (GG) Preparation

In our experience, there are 5 different categories of students preparing for GATE Geology & Geophysics (GG). Identify your category and prepare accordingly.

Best GATE Geology & Geophysics (GG) Classes In India

• There are a lot of good classes and a lot of not good classes. So it is very important to understand how to figure out the best GATE Geology & Geophysics (GG) Class.
• Remember what works for Jack will not work for Jill, as both may have different competency levels and learning abilities.
• Some of the good classes conduct GATE Geology & Geophysics (GG) Coaching in large Classrooms. They also spend over a hundred hours on a single subject. These classes are good for students who require both Engineering Coaching and GATE Geology & Geophysics (GG) Coaching. The downside of this kind of approach is that, students end up wasting more time in note making and learning concepts and less time in gate level stuffs.

Years Of Experience In Conducting GATE Geology & Geophysics (GG) Classes Mostly Into All Of The Main Cities Of India As Well As Great Enthusiasm Of All Of Our IITian Faculty, Has Helped Us Develop The Best Classroom Teaching System At CAREER AVENUES.

About Career Avenues Classroom Teaching System:

• Smaller batches of 25 to 50 students.
• More personal attention by faculty.
• Doubt solving done immediately in classes.
• Easy Student-Faculty interaction.
• Printed notes provided to students (saves time from useless note taking).
• Class focus is explaining concepts and checking if students have understood the concept accurately.
• A large number of GATE Geology & Geophysics (GG) questions solved in class with the faculty.
• So classes starts with concepts and ensures every student reaches GATE Geology & Geophysics (GG) level.

Best Video Lectures For GATE Geology & Geophysics (GG) Exam Preparation In India

Here are details about Career Avenues Video Lectures for GATE Geology & Geophysics (GG).

1. Videos covering complete GATE Geology & Geophysics (GG) syllabus including core technical areas and General Aptitude.
2. Videos made by faculty who teach in our GATE Geology & Geophysics (GG) classes.
3. Videos divided into small modules of GATE Geology & Geophysics (GG) concepts for easy understanding.
4. Videos of actual GATE Geology & Geophysics (GG) Questions and Solutions to ensure you stay GATE Geology & Geophysics (GG) focused.
5. Video available to be seen online on a secure encrypted Pen Drive (USB).
6. Free Online Test Series with Video Courses.

GATE Geology & Geophysics (GG) Exam Pattern/Structure

GATE Geology & Geophysics (GG) Test/Exam Pattern (Based on last 3 years papers)
GATE General Aptitude Questions:

Exam/Test/Paper contains 10(out of 65) questions that test the “General Aptitude” (language and analytic skills)and carry a total of 15 marks (out of 100), apart from the core subject of Geology & Geophysics (GG).

GATE Geology & Geophysics (GG) Questions:

Exam/Test/Paper Part A (Common Section for both Geology and Geophysics) contains 25(out of 65) questions that test the “Tech” (Common Section)and carry a total of 25 marks (out of 100).
Exam/Test/Paper Part B (Section I or Section II) contains 30(out of 65) questions that test the “Tech” (only 1 section out of 2 –> either Geology or Geophysics)and carry a total of 60 marks (out of 100).

Duration and examination type: The examination is of 3 hours duration, and contains a total of 65 questions worth a maximum of 100 marks. From 2014 onward, the examination for all the papers is carried out in an online Computer Based Test (CBT) mode where the candidates are shown the questions in a random sequence on a computer screen. The questions consist of both multiple choice questions (four answer options out of which the correct one has to be chosen) and numerical answer type questions (answer is a real number, to be entered via an on-screen keypad and computer mouse). Candidates are provided with scribble pads for rough work and these have to be returned after the examination. At the end of the 3-hour window, the computer automatically closes the screen from further actions.

5 Very Important & Best Tips To Crack GATE Geology & Geophysics (GG)

How Should I Plan My GATE Geology & Geophysics (GG) Preparation

In our experience, there are 5 different stages in which students find themselves while preparing for GATE Geology & Geophysics (GG). Identify your stage and plan accordingly.

Best Test Series For GATE Geology & Geophysics (GG) Exam Preparation In India.

There are many good Test Series for GATE Geology & Geophysics (GG) Exam Preparation. But student should be able to identify the good and the not so good test series before making a purchase.

The key points to note are –

1. Many Test Series are very tough and are not of GATE Geology & Geophysics (GG) level. Most Questions of GATE Geology & Geophysics (GG) can be solved in maximum of 3-4 minutes. But if a test series gives questions which a student will take many steps to calculate and 8-10 minutes to solve, then test series is not having GATE Geology & Geophysics (GG) type of questions.
2. Many institutes who train both for GATE and IES mix questions from both types of tests.
   This is not a good test series as the type and style of questions of both exams are different.
3. Blocking Test Series:
   Some institutes have a practice of blocking your test series if you do not submit your GATE Admit Card details. This is an illegal practice. When you have purchased a product, at no point does any institute have the right to block access on such frivolous grounds.
4. CAREER AVENUES provides an excellent Test Series for the GATE Geology & Geophysics (GG) Branch.

Here are the features of Career Avenues GATE Geology & Geophysics (GG) Test Series.

1. GATE Geology & Geophysics (GG) like platform including virtual calculator.
2. Strong GATE Geology & Geophysics (GG) test analysis that help you understand your strong and weak areas.
3. Require very little internet bandwidth.
4. Can be answered on Smart-Phones as well.
5. All numerical questions with detailed explanations.
6. All India Rankings for select mock papers.

Questions made by GATE Geology & Geophysics (GG) toppers, of the perfect level.

NPTEL Videos And GATE Geology & Geophysics (GG) Exam Preparation

1. NPTEL Videos are great videos for learning a subject. They have been made by the best teachers in India, and are very detailed.
   However, in our opinion, they are only partly useful for GATE Geology & Geophysics (GG) exam prepararion.
2. The NPTEL Videos were not made from the perspective to coach for GATE Geology & Geophysics (GG). They were made to teach/explain a subject. It is similar to subject books written by good authors. They teach the entire subject.
3. But GATE Geology & Geophysics (GG) is focused on a few parts of the subject and is more application oriented.
4. So you should ideally use some GATE Geology & Geophysics (GG) focused study material or Video Lectures to prepare for GATE Geology & Geophysics (GG). In parts of the subject where you may want to go in depth, you may refer to NPTEL Videos.

It Is Very Important That Students Use GATE Geology & Geophysics (GG) Focused Video Lectures. That Being So, Our Dedicated IITian Faculties At CAREER AVENUES With Years Of Experience While Facilitating GATE Geology & Geophysics (GG) Coaching, Have Prepared Comprehensive Videos Focused On GATE Geology & Geophysics (GG) Exam.

Click on the relevant links given below to access Past GATE Geology & Geophysics Papers & Answer Keys of any GATE 2018, GATE 2017, GATE 2016, GATE 2015, GATE 2014 & GATE 2013 years of your choice.

GATE Geology & Geophysics Past Papers & Answer Keys

• Given below are the links to GATE Geology & Geophysics papers and their answer keys for years 2013, 2014, 2015, 2016, 2017 & 2018 as published by the IITs.
• Going through the test papers will give you an excellent idea about the nature of GATE, the level of difficulty, the type of questions, etc.
• It would be best that you try to answer these tests seriously in a 3-hour period to get the maximum benefit out of it.

GATE 2018 Geology & Geophysics Paper
GATE 2018 Geology & Geophysics Answer Key

GATE 2017 Geology & Geophysics Paper
GATE 2017 Geology & Geophysics Answer Key

GATE 2016 Geology & Geophysics Paper
GATE 2016 Geology & Geophysics Answer Key

GATE 2015 Geology & Geophysics Paper
GATE 2015 Geology & Geophysics Answer Key

GATE 2014 Geology & Geophysics Paper
GATE 2014 Geology & Geophysics Anwer Key

GATE 2013 Geology & Geophysics Paper
GATE 2013 Geology & Geophysics Answer Key

CAREER AVENUES provides best training for GATE Geology & Geophysics through its various programs. You can find more details using link given below:

Go To Main GATE Geology & Geophysics Engineering Page   If you wish to know more about GATE Geology & Geophysics Tests, GATE Geology & Geophysics 2019, GATE Geology & Geophysics 2020 and GATE Geology & Geophysics 2021 Coaching, Study Material, Books, & Video Lecture Courses then click on the quick links given at the bottom of this page. If you have any questions regarding GATE Geology & Geophysics Course Enrollment you can Call Us or Whatsapp Chat With Us or Message Us; details are given at the bottom of this page. Furthermore; you can visit any of our Mumbai GATE Coaching, Delhi GATE Coaching, Chennai GATE Coaching, Chandigarh GATE Coaching, Ludhiana GATE Coaching, Jalandhar GATE Coaching, Hyderabad GATE Coaching and Trivandtrum GATE Coaching center Locations for counseling.