Dear Ravi, here's the list of top colleges for Fashion Designing -

• National Institute of Design, Ahmedabad 
  
• NIFT, Navi Mumbai 
• NIFT, New Delhi
• Mody University, Sikar
• National Institute of Design, Gandhinagar
• Manipal University 
• NIFT, Hyderabad
• JECRC University, Jaipur
• NIFT, Bhubaneshwar
• IIFT, Chnadigarh

Generally the admission in these top colleges is on the basis of marks secured in the entrance exams conducted by the respective college.

All the best. 

Feel free to ask for any query.