Class 12th Biology NCERT - (OFFLINE) textbook is very useful for students and for many competitive exams
it is just like a handbook in your android
i hope it is useful for you
Thankyou

Chapter 1: REPRODUCTION IN ORGANISMS

Chapter 2: SEXUAL REPRODUCTION IN FLOWERING PLANTS

Chapter 3: HUMAN REPRODUCTION

Chapter 4: REPRODUCTIVE HEALTH

Chapter 5: PRINCIPLES OF INHERITANCE AND VARIATION

Chapter 6: MOLECULAR BASIS OF INHERITANCE

Chapter 7: EVOLUTION

Chapter 8: HUMAN HEALTH AND DISEASE

Chapter 9: STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION

Chapter 10: MICROBES IN HUMAN WELFARE

Chapter 11: BIOTECHNOLOGY : PRINCIPLES AND PROCESSES

Chapter 12: BIOTECHNOLOGY AND ITS APPLICATIONS

Chapter 13: ORGANISMS AND POPULATIONS

Chapter 14: ECOSYSTEM

Chapter 15: BIODIVERSITY AND CONSERVATION

Chapter 16: ENVIRONMENTAL ISSUES