Hello Ayushman,

This is a quite different career and there is less competition in this field. The average salary of a fashion designer is around 20,000 per month. Although your experience and skills along with your past projects are a main parameter in your salary. Let me tell you there is no limit for maximum earning, although the higher  band of average salary is around 35000 per month.

For more information please refer the below mentioned articles:

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

https://design.careers360.com/articles/know-all-about-fashion-design

Hope this helps