Hello!! My dear,
A fashion designing course is a 3 years under graduate course..here a student has to give 6 semesters in 3 years.
In this , many things like accessory of dresses, jwellary, and designing of footwear etc u can learn..

Here some colleges name below-

1) Symbiosis international University

2) MATS UNIVERSITY

3) NATIONAL INSTITUTE OF FASHION TECHNOLOGY

4) ANSAL UNIVERSITY

5)TheFashion Institute of Technology(FIT) ...

6)entral Saint Martins. ...

7)ondon College of Fashion. ...

8)oyal College of Art. ... .

9)Politecnico di Milano. ...
Etc...

Hope it helps!!
Thank u!! All the best...