Design

There are many institutes where you can go prepare yourself and if you're much intelligent then you can buy a book and prepare yourself for the exam of NIFT.

Interior design is a course that helps you to modulate the interior space of a building and AutoCAD is a software that helps you visualize your picture in a three dimensional manner.

There are lots of institutions and colleges which are offering lateral entry after clearing aptitude test and PI. Pearl, NIIFT, etc. are few of them. For more information, kindly check their websites or visit the campus.

Hello Ankita
You can sit for the "UID Entrance test" to get admission in Unitedworld Institute of Design for any design course.
Check out this link: http://www.uid.edu.in/admission-ugpg/

Go for post-graduation in fashion designing if you want to make a career in fashion stream. Degree courses give you in-depth knowledge whereas Diploma course gives you basic knowledge.

The design courses are diversified into many mediums like offline and online.

Yes, you can apply for an interior design course. You can apply for the institutions like:
1. ITM.
2. IFDT – Mumbai.
3. INSD – Mumbai.
4. INIFD - Mumbai.

You can go with automobile design as it has huge scope.