Interior Design

You may get into NIFT.

Yes, there are a lot of short-term courses available for interior designing. Please refer to the link below:
https://goo.gl/vmuZmp

Please refer to the link below:
https://www.shiksha.com/articles/top-10-interior-design-schools-in-india-blogId-10599

You have already decided on the course you wish to pursue and that is interior designing. The college that I can suggest you is either go for NID or NIFT.

Refer to the link below:
https://goo.gl/vjpc8F

Starting salary for B.Sc. graduates in interior designing depends on a number of different factors. Prominent factors are- profile of the employer, employee skills, aptitude and grades attained by the employee. In the beginning, interior designers may earn 10-20 k Rupees per month. Salary will rise after gaining work experience. If one decides to remain self-employed, salary figure will be quite different than the ones mentioned above.

A student pursuing a degree programme under regular mode may be allowed to pursue a maximum of one certificate/diploma/advanced diploma/PG diploma programme simultaneously either in regular or open and distance mode in the same university or from other institutions.

Please refer to the link below:
https://www.shiksha.com/articles/top-10-interior-design-schools-in-india-blogId-10599