TNPSC Assistant Geologist Syllabus
TNPSC Assistant Geologist Syllabus

The Tamil Nadu Public Service Commission (TNPSC) has recently issued an official notification outlining the comprehensive syllabus and exam pattern for the TNPSC Assistant Geologist Exam 2023. It is of utmost importance for aspiring candidates to carefully examine and understand these details before initiating their exam preparation. To assist candidates in accessing the relevant information conveniently, direct links to the TNPSC Assistant Geologist Exam Pattern 2023 and topic-wise TNPSC Assistant Geologist Syllabus 2023 PDF format have been provided at the end of the notification.

TNPSC Assistant Geologist Syllabus 2023

To excel in the upcoming Assistant Geologist Exam, candidates should have a thorough understanding of the TNPSC Assistant Geologist Exam Syllabus. Familiarizing themselves with the subjects and topics outlined in the syllabus will help them focus their studies effectively. Equally crucial is the knowledge of the TNPSC Assistant Geologist Exam Pattern, which sheds light on the question formats, marking scheme, and other vital details. By delving into these significant aspects, candidates can enhance their preparation and increase their chances of success in the TNPSC Assistant Geologist Exam.

TNPSC Assistant Geologist Syllabus 2023 – Details

Organization NameTamil Nadu Public Service Commission
Post NameAssistant Geologist in Groundwater wing of Water Resources Department, Assistant Geologist in Geology and Mining Department
Exam NameCombined Geology Subordinate Service Examination
Selection ProcessWritten Exam, Interview

TNPSC Assistant Geologist 2023 – Selection Process

The Officials will select the candidates based on a Written Examination and an Oral Test in the form of an interview.

TNPSC Assistant Geologist Exam Pattern 2023

SubjectDurationMaximum marksMinimum qualifying marks for selectionSCs, SC(A)s, STs, MBCs/DCs BC(OBCM)s & BCMsOthers
Paper –I:- Geology (Code No.395) (PG Degree Standard) (200 Questions)3 Hours300153204
Paper – II:- Part-A Tamil Eligibility Test (SSLC Standard) (100 questions/150 marks)3 Hours150Note: Minimum qualifying marks – 60 marks (40% of 150) Marks secured in Part-A of Paper-II will not be taken into account for the ranking.
Part-B (General Studies) (Code No:003) (100 questions/ 150 marks) General Studies (Degree Standard–75 questions) and Aptitude and Mental Ability Test (SSLC Standard-25 questions) 150 60 (Interview and Recors)
Total 510 

TNPSC Assistant Geologist Syllabus 2023 – Download PDF

Paper I – Geology Syllabus


Origin, Evolution, Age and Interior of the Earth – Principles of geodesy – Rock cycle – Isostasy – Continental drift, Seafloor spreading, Plate tectonics – Paleomagnetism and its application for determining paleoposition of continents – Orogeny and Epeirogeny – Volcanoes and earthquakes – Effects and causes – Seismic Hazard zonation of India – Tectonic deformation and seismicity in the Extra Peninsular, Indogangetic plains and Peninsular India – Applications of geomorphology in mineral prospecting and coastal studies – Weathering – processes and products – Geomorphic cycles and their interpretation – Morphology and its relation to structures and lithology – geomorphic landforms formed by action of rivers, wind, glaciers, waves and groundwater – Features of ocean floor – continental shelf, slope and rise – concepts of landscape evolution, major geomorphic features of India – coastal, peninsular and extra peninsular – Classification of shorelines and their evolution – submarine canyons, Geosynclines and Island arcs.


Principles of stratigraphy – Code of stratigraphic nomenclature of India – lithostratigraphy – biostratigraphy – chronostratigraphy – magnetostratigraphy, sequence stratigraphy – Principles of stratigraphic correlation; Indian stratigraphy and economic importance – Cratons of India – Dharwar, Bastar, Singhbhum, Aravalli and Bundelkhand Cratons – Proterozoic mobile belts – Eastern Ghats Mobile Belt, Southern Granulite Terrain, Central Indian Tectonic Zone, Aravalli – Delhi Belt, North Singhbhum Mobile Belt – Proterozoic sedimentary basins – Cuddapah, Delhi, Vindhyan, Kurnool and Kaladgi – Phanerozoic stratigraphy – Paleozoic – Spiti, Kashmir and Kumaon – Mesozoic – Spiti, Kutch, Narmada Valley and Tiruchirapalli erstwhile Trichinopoly – Gondwana Supergroup, Deccan Traps – Cenozoic Assam, Bengal basins, Garhwal-Shimla Himalayas – Siwaliks – boundary problems in Indian stratigraphy Precambrian-Cambrian boundary – Permian-Triassic boundary – Cretaceous-Paleogane (K-Pg) formerly Cretaceous-Tertiary (K-T) boundary – Paleogane-Neogene and Neogene-Quaternary boundary.


Fossil record and geological time scale – modes of preservation of fossils and concept of taphonomy – Body and ichnofossils, species concept, organic evolution, Ediacara Fauna – morphology and time range of Graptolites, Trilobites, Brachiopods, Lamellibranchs, Gastropods, Cephalopods, Echinoids and Corals – Evolutionary trends in Trilobites, Gastropods, Cephalopods; and Graptolites – Micropaleontology – methods of preparation of microfossils, morphology of microfossil groups (Foraminifera, Ostracoda), Fossil spores and pollen – Application of micropaleontology in oil exploration – Gondwana plant fossils and their age and climate significance – Vertebrate life through ages, evolution in Proboscidea, Equidae, and Hominidae – Dinosaurs – their classification and extinction – Applications of paleontological data in stratigraphy, paleoecology, and paleoclimatology – Mass Extinctions.


Mechanical principles of rocks – Strain markers in deformed rocks – Mohr’s circle – V rules and outcrop patterns – Stereographic Projections of structural elements – Mechanics and causes of folding and faulting – Classification of folds and faults – Recognition of folds and faults in the field – Joints – Cleavage and Schistosity types and origin – Secondary lineation – Types of unconformity and their recognition in the field – Introduction to Petrofabric analysis – Tectonites, their classification and geological significance.


Definition, Classification, and elements of minerals and Crystallography – Optical, Electrical, and Magnetic Properties of minerals – Physical, chemical, and optical properties of Quartz, Feldspars, Feldspathoids, Pyroxene, Amphibole, Olivine, Garnet, Mica, Zeolites and Carbonate groups – Stereographic and Gnomonic projections of natural crystals of normal classes. 14 Bravais lattices and their derivation – Derivation of 32 classes of symmetry – Elements of X-ray crystallography – Napier’s theorem – Equations of a normal – Bragg’s law – X-ray diffraction method – Identification of minerals from X-ray diffractogram – Concept of optical mineralogy – Identification of minerals using a petrological microscope.


Classification of Igneous rocks: Mineralogical, Chemical, and IUGS classification – Structures and textures – Petrography and petrogenesis of Granites, Alkaline rocks, Anorthosites, Carbonatites, Dolerites, Ultramafics – Study of the binary and ternary system of crystallization – Bowen’s reaction series – Diversity of Igneous rocks – variation diagrams – Crystallisation of Basaltic magma – Metamorphism – Agents and kinds of metamorphism.


Sedimentary depositional environments – Important clastic and nonclastic rocks – Heavy minerals and Provenance – Tectonics and Sedimentation – Sedimentary Basins of India – Paleo currents and Basin Analysis – Classification of sedimentary rocks – sedimentary textures grains size, roundness, sphericity, shape and fabric – grain size analysis – sediment transport and deposition – sedimentary structures Pen contemporaneous deformation structure and biogenic structures – principles and application of paleo current analysis – composition and significance of different types of sedimentary rocks Sandstone, Limestone, Banded Iron Formation, Mudstone, and Conglomerate – carbonate diagenesis and dolomitization – sedimentary environments and facies-facies models – fluvial, glacial, deltaic, siliciclastic shallow and deep marine environments – carbonate platforms – types and facies models; sedimentation in major tectonic settings; Application of sequence stratigraphy in basin analysis.


Classification of mineral deposits – Process of formation of mineral deposits – Magmatic, Hydrothermal, Sedimentary, Metamorphic, Sublimation, Evaporation, Oxidation and Supergene enrichment – Metallogenic Epochs and provinces of India – Introduction of ore microscopy – Physical and optical properties of ore minerals – Textures and microstructures of ores – Controls of ore Localisation – Fluid inclusion in ore mineral assemblages – Origin, Occurrences, Indian distribution and uses of the following ores – Iron, Manganese, Copper, Lead, Zinc, Aluminium, Chromium, Gold, Barite, Graphite, Asbestos and Silica, Uranium, Thorium, and Industrial Minerals. Origin of coal and petroleum – Physical and Chemical Properties of coal and petroleum – Deposits of coal and Petroleum in India – Distribution of Gondwana and Tertiary coal fields of India. Gas hydrates and Coal bed methane, Petroliferous basins of India – Lignite deposits in India – Strategic, Critical and essential minerals – National mineral policy 2019 – Conservation and Utilization of mineral resources.


Occurrence of groundwater – Aquifers – Major Basins and Drainage systems of Tamil Nadu – Groundwater flow – Darcy’s Law – Hydraulic conductivity and Hydrological parameters – Transmissibility, Permeability – Specific yield and retention – Hydrogeological characters of different types of rocks – Rock water interaction – Types of wells – Drilling methods and methods of construction, Design, and development and Well logging methods – Pumping test methods – Estimates of groundwater potential and recharge – Managed Aquifer recharge – Rainwater Harvesting techniques and methods – Aquifer recharge methods – Seawater intrusion – Study and methods – Electrical methods of groundwater exploration – Tracer – Isotope techniques.


Geophysical methods of prospecting – Electrical, Magnetic, Gravity, and Seismic – Radioactive methods – Geochemical classification of elements and anomaly – Geochemical cycle – Geochemical prospecting – Engineering properties of Rocks – Geological investigations pertaining to Dams, Reservoirs, Tunnels, Bridges, and Roads – Rock sampling techniques – Ore reserve estimation and UNFC. Mining Methods: Surface and Subsurface – Coal and Alluvial – Prominent mines and mineral legislations of India – Environmental impacts (EIA) due to mining and mineral processing – Role of Geologist in mining industries. Natural Hazards – Floods, Landslides, Earthquakes, and Tsunami – Causes and Mitigation. Renewable and nonrenewable resources. Applications of Remote sensing – GIS and GPS in Geological studies classification of metamorphic Rocks – Textures and Structures – Different grades and depth Zones – Metamorphic facies – Metamorphic differentiation – Thermal – Clastic and Regional Metamorphism – Origin of Eclogites – Charnockitisation – Granitisation – Metasomatism.

Paper II – Part A – Syllabus for Compulsory Tamil Eligibility Test (Topics for Magalmark Question) 10th standard



Detection of mabarundach mole.

Pilairiduam (i) Endipilailaya removal (ii) Rabupilailaya, Removal of caries/ removal of secondary caries.

Knowing the Tamil Moll that is suitable for English Moll.

Recognizing the wrong speech by sounding words.

A bag of pearls.

True grazing of tavarchmol.

Tavarchmollai Makaduttu / Vilanamamutu, Vilanamayachem, Vilanayailayum mapayar, madhazhilmpapayalara / Creation.

Sorting of Molkala according to the alphabet.

Regulating and smoothing the milk.

Knowing the difference between the two characters.

(Eg) Accumulate-accumulate

Avoidance of inappropriate questioning.

Blindfolding as any sentence – Tanvilana, Biravilana, Blindfolding of shepherding and shepherding.

Realization of Mabarul, which is the meaning of Uwala.

Active Moles (Kalichmol)

Foreign Sites.

Tamil Molkalaik which is a leaf for other rivers Detection (eg) Tagaldu Biscuit – Thankatti.

Write the directions of the town leaders (eg) Thanjvur – Thanjle.

Knowledge of punctuation.

For writing, writing (waran – comes).

Formation of new mole by shedding mole.

The meaning of Qaim Ala Tal (Dead, Present, Future).

Avoid excessive vinatchmol.

Single leaf mole (Entava, in Yemen, by God, so, it is wrong)

Select the inner mole in the appropriate place within the alapad.

Irumaparul Daruga.

Kuril – Madil Ataram, Mabarul failure.

Claim, Karaim – Eriya? Is it wrong?

Knowledge of Art and Culture :- E.g. – Artificial Intelligence Super Computer

Mabarutdha, Mabarulai Madarivu grazing

Compound nouns of verbs (eg) grass – grasses

Prohibition of high-profile cases

Reconciliation (one-to-one)

Mole – Mabarul – Mabarutuga

Orula -panla bilai

Eriyana Viladalayat Datarnmatadu for question from the passage.

Paper II – Part B – General Studies (Degree Standard)


Scientific Knowledge and Scientific Temper – Power of Reasoning – Rote Learning vs Conceptual Learning – Science as a tool to understand the past, present, and future.

Nature of Universe – General Scientific Laws – Mechanics – Properties of Matter, Force, Motion, and Energy – Everyday application of the Basic Principles of Mechanics, Electricity and Magnetism, Light, Sound, Heat, Nuclear Physics, Laser, Electronics, and Communications.

Elements and Compounds, Acids, Bases, Salts, Petroleum Products, Fertilisers, Pesticides.

Environment and Ecology.


History – Latest diary of events – National symbols – Profile of States – Eminent personalities and places in the news – Sports – Books and authors.

Polity – Political parties and political system in India – Public awareness and General administration – Welfare-oriented Government schemes and their utility, Problems in Public Delivery Systems.

Geography – Geographical landmarks

Economics – Current socio–economic issues.

Science – Latest inventions in Science and Technology.

Prominent Personalities in various spheres – Arts, Science, Literature, and Philosophy.


Location – Physical features – Monsoon, Rainfall, Weather and Climate – Water Resources – Rivers in India – Soil, Minerals and Natural Resources – Forest and Wildlife – Agricultural pattern.

Transport – Communication.

Social Geography – Population Density and distribution – Racial, Linguistic Groups, and Major Tribes.

Natural calamity – Disaster Management – Environmental pollution: Reasons and preventive measures – Climate change – Green energy.


Indus Valley Civilization – Guptas, Delhi Sultans, Mughals and Marathas – Age of Vijayanagaram and Bahmani Kingdoms – South Indian History.

Change and Continuity in the Socio-Cultural History of India.

Characteristics of Indian Culture, Unity in Diversity – Race, Language, Custom.

India as a Secular State, Social Harmony.


Constitution of India – Preamble to the Constitution – Salient features of the Constitution – Union, State, and Union Territory.

Citizenship, Fundamental Rights, Fundamental Duties, Directive Principles of State Policy.

Union Executive, Union Legislature – State Executive, State Legislature – Local Governments, Panchayat Raj.

Spirit of Federalism: Centre – State Relationships.

Election – Judiciary in India – Rule of Law.

Corruption in Public Life – Anti-corruption measures – Lokpal and Lok Ayukta – Right to Information – Empowerment of Women -Consumer Protection Forums, Human Rights Charter.


Nature of Indian Economy – Five-year plan models – an assessment – Planning Commission and Niti Ayog.

Sources of revenue – Reserve Bank of India – Fiscal Policy and Monetary Policy – Finance Commission – Resource sharing between Union and State Governments – Goods and Services Tax.

Structure of Indian Economy and Employment Generation, Land Reforms and Agriculture – Application of Science and Technology in Agriculture – Industrial growth – Rural Welfare Oriented Programmes – Social Problems – Population, Education, Health, Employment, Poverty.


National Renaissance – Early uprising against British rule – Indian National Congress – Emergence of leaders – B.R.Ambedkar, Bhagat Singh, Bharathiar, V.O.Chidambaranar Jawaharlal Nehru, Kamarajar, Mahatma Gandhi, Maulana Abul Kalam Azad, Thanthai Periyar, Rajaji, Subash Chandra Bose, Rabindranath Tagore, and others.

Different Modes of Agitation: Growth of Satyagraha and Militant Movements.

Communalism and Partition.

UNIT-VIII: History, Culture, Heritage, and Socio-Political Movements in Tamil Nadu

History of Tamil Society, related Archaeological discoveries, Tamil Literature from Sangam Age till contemporary times.

Thirukkural : (a) Significance as a Secular Literature

(b) Relevance to Everyday Life

(c) Impact of Thirukkural on Humanity

(d) Thirukkural and Universal Values – Equality, Humanism, etc

(e) Relevance to Socio – Politico-Economic Affairs

(f) Philosophical content in Thirukkural

Role of Tamil Nadu in freedom struggle – Early agitations against British Rule – Role of women in freedom struggle.

Evolution of 19th and 20th Century Socio-Political Movements in Tamil Nadu – Justice Party, Growth of Rationalism – Self Respect Movement, Dravidian Movement, and Principles underlying both these Movements, Contributions of Thanthai Periyar and Perarignar Anna.

UNIT–IX: Development Administration in Tamil Nadu

Human Development Indicators in Tamil Nadu and a comparative assessment across the Country – Impact of Social Reform Movements in the Socio-Economic Development of Tamil Nadu.

Political parties and Welfare schemes for various sections of people – Rationale behind Reservation Policy and access to Social Resources – Economic trends in Tamil Nadu – Role and impact of social welfare schemes in the Socio-Economic Development of Tamil Nadu.

Social Justice and Social Harmony as the Cornerstones of Socio-Economic Development.

Education and Health Systems in Tamil Nadu.

Geography of Tamil Nadu and its impact on Economic growth.

Achievements of Tamil Nadu in various fields.

e-Governance in Tamil Nadu.


Simplification – Percentage – Highest Common Factor (HCF) – Lowest Common Multiple (LCM).

Ratio and Proportion.

Simple interest – Compound interest – Area – Volume – Time and Work.

Logical Reasoning – Puzzles-Dice – Visual Reasoning – Alpha numeric Reasoning – Number Series.

TNPSC Assistant Geologist Syllabus 2023 – Download PDF

To check and download the TNPSC Assistant Geologist Syllabus & Exam Pattern PDF, click here.

TNPSC Assistant Geologist Syllabus 2023 – FAQ

What is the TNPSC Assistant Geologist Selection Process 2023?

The selection will be based on a Written Examination and an Oral Test.

How to Download TNPSC Assistant Geologist Syllabus 2023?

Candidates can download TNPSC Assistant Geologist Syllabus from our website.

For how many marks will the TNPSC Assistant Geologist Exam be conducted?

The TNPSC Assistant Geologist Exam will be conducted for 450 marks.

What is the mode of the TNPSC Assistant Geologist Exam?

The TNPSC Assistant Geologist Exam will be conducted in Pen/Paper mode.

How much time will be given to complete the TNPSC Assistant Geologist Exam?

3 hours will be given to finish the TNPSC Assistant Geologist Exam.