I m 17 years old boy and my hands are very thin and i want to gain muscles of my hands.so give me proper diet to gain muscle.i m lacto vegetarian?

Diet not problem: I often get asked about what can be done for chubby or short fingers. You do have small muscles in your hands that control fine finger motion and do contribute to hand strength. Any muscle will get bigger with proper exercise, but you also need adequate protein intake to build new muscle. Gripping the weights for general exercises to increase arm size usually are enough to increase hand strength

Not possible: No diet or exercise will increase the muscles in your hands.