I do tk 2 meal rice & snacks per day. Currently I am hvn xam n do take more food. Will it be a prblm if I take 4 fruits and 2 veg servn per day instd?

You're fine. Truth be told, you've just reached the status of grown man. Congratulations on your progress in your studies. You're too big to be asking us permission to eat as you like. Physical fitness is much more important now than someone's idea of a perfect diet. I would caution that if you're a vegetarian, you'll do well to supplement -- get advice from a sympathetic physician / dietician.