[vasista]

I am 10th class, age 15 ,height 4"10.give me some tips to grow fast

[joypulv]

Boy or girl?
Many boys at 15 have a delay and then a spurt, and for a while girls are taller.
But if one or both parents are short, you may not be tall. You won't know for several more years.
There's not way to make yourself grow taller.
Don't have any of those horrible operations!

[Fr_Chuck]

There is nothing to make you grow taller, You can go to your doctor and see if there are any hormone or gland issues. At 15 you should still be growing taller over the next several years.