While not a PDF, you can buy a used paperback for as low as ₹200-300 and then use a personal scanner to create a PDF for your own use (as fair use for study). Websites like BookChor, AbeBooks, or campus used-book shops are excellent sources.
: A critical addition in modern editions, focusing on how plants adapt to abiotic and biotic stresses. textbook of plant physiology v verma pdf
: Each chapter includes end-of-chapter questions, suggested experiments, and activities to reinforce learning. While not a PDF, you can buy a