NDA & NA Exam • General Science (Biology) Portal
NDA General Science Hub
Select a subject module to explore high-yield biology notes, physiological diagrams, practice drills, and previous years’ UPSC questions.
Module 01 • Cell Biology
Cell Structure, Organelles, Biomolecules & Enzymes
Module 02 • Human Physiology
Digestive, Circulatory, Respiratory, Excretory & Nervous Systems
Module 03 • Genetics
Mendelian Genetics, DNA Structure & Theories of Evolution
Module 04 • Botany
Photosynthesis, Respiration, Plant Tissues & Reproduction
Module 05 • Ecology
Ecosystems, Food Webs, Biodiversity & Pollution
Module 06 • Health & Biotech