Hello Rajnish !

Congratulations for the good score !

There are a lot of courses available for fashion designing. You can either choose to do bachelor's course of 4yrs duration or opt for diploma which is 1-3yrs duration.

If you choose to do diploma you can take admission in INIFD. 

If you choose to do undergraduate course of 4yrs in B.des. then you will have to give entrance test in the college you want to join. 

NIFT is the top ranked college in fashion designing. Based on your entrance test rank you will get to choose the branch you want to.

All the best !

Take exams of nift and nid ,these colleges will provide you with ample of oppurtunities to make your mark in this field there are private colleges like pearl academy which are also very decent.