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Subjects in IAS – Botany, Chemistry and Civil Engineering

UPSC & State PSC 2021 Published on 15 February 2020

The UPSC 2020 Schedule is the first and foremost step for all the candidates who wish to appear for the IAS civil services exams. All the candidates must be well versed with the entire syllabus to aim to score the highest in the exams. The UPSC notification helps all the candidates to remain updated regarding the exam.

The IAS civil services exam is known to be the toughest exam in the country. The Union Public Service Commission conducts the IAS exam for which thousands of candidates appear every year.

The exam is divided into three parts:-

● The prelims, which is an objective exam.

● The Mains, which is a descriptive exam.

● A Personal Interview for Personality Test.

In this article, we will be discussing a few optional subjects which the candidates are expected to prepare to be eligible for the Personal Interview. These optional subjects are Botany, Chemistry and Civil engineering.

UPSC Botany Mains syllabus comprises of the following:


Microbiology and Plant Pathology, which deals with the structure and reproduction of viruses. Phanerogams, which deals with the classification and distribution of gymnosperms. Cryptogams, which deals with the algae. Morphogenesis, cell, tissue, organ and protoplast culture. Plant resource development, domestication, and introduction of plants, the origin of cultivated plants.


Physiology and Biochemistry deal with mineral nutrition and ion transport. Genetics, Molecular Biology, and Evolution deals with the development of genetics. Cell Biology deals with the techniques of cell biology. Plant breeding, biotechnology, and biostatistics involve methods of plant breeding. Ecology and Plant Geography, the concept of an ecosystem.

UPSC Chemistry mains syllabus comprises of the following:

Paper 1:

Atomic Structure Solid-state Thermodynamics Chemical bonding Liquid state The Gaseous state and Transport Phenomenon Photochemistry Electrochemistry Chemical Kinetics Phase Equilibria and Solutions Main group chemistry Surface phenomena and catalysis Coordination compounds Bio-inorganic chemistry General chemistry of ‘F’ block elements

Paper 2:

Reaction mechanisms Delocalized Covalent Bonding Photochemistry Synthetic uses of Reagents Pericyclic reactions Preparation and properties of polymers


UPSC Civil engineering mains syllabus comprises of the following:

Paper 1:

Engineering Mechanics, Strength of Materials and Structural Analysis

Engineering Mechanics

Strength of Materials

Structural Analysis

Design of Structures deals with concrete, steel and Masonry Structures:

Structural steel design

● Design of Concrete and Masonry Structures

Fluid Mechanics, Open Channel Flow and Hydraulic Machines:

● Dimensional Analysis and Similitude

● Boundary-Layer

● Fluid Mechanics

● Laminar Flow

● Geotechnical Engineering

● Open channel flow

● Hydraulic Machines and Hydropower

Paper 2:

Construction Technology, Equipment, Planning and Management:

● Construction

● Construction Planning and Management

● Construction Technology

Surveying and Transportation Engineering :

● Highway Engineering

● Surveying

● Railway Engineering

Hydrology, Water Resources, and Engineering:

● Water Resources Engineering

● Hydrology

● Groundwater flow

● Irrigation Engineering

Environmental Engineering:

● Sewage systems

● Sewage Characterization

● Water supply

● Sewage treatment

● Intake of water

● Solid waste

Environmental pollution

We are confident that after going through this article you will not face any issues if you are preparing for Botany, Biology or other important subjects. If you are stuck somewhere and need information about UPSC 2020 Syllabus then you can log on to

All The Best To All The UPSC 2020 Aspirants !

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