Hello Navachaitanya K,
Why do you ask about being taller?
You could always have surgery or wear heels; but, I advise neither. If this is necessary, then, you need to talk to your doctor.
Please be happy with yourself and strive for the best health possible. Like the others have said, being in shape will make you appear taller than you really are.
If you did not know your height, how tall would you be? Please try not to think about the number and go enjoy life.