There are multiple pratanagar in India. One Pratap Nagar is in west bengal and the other is in Vadodara etc. Now some of the top fashion designing colleges in India are:

INIFD Deccan, Pune

MIT Institute of Design, Pune

SID Pune - Symbiosis Institute of Design

LPU Jalandhar - Lovely Professional University

International School of Design, Pune

For more colleges you may visit the link provided below:

https://design.careers360.com/colleges/list-of-design-colleges-in-india?ownership=Private&branch=Fashion%20Design

To know more about career in Fashion Designing visit the link below:

https://www.careers360.com/courses/fashion-design-course

I hope this answer helps. All the very best for your future endeavors!