Hello,

Sorry to inform you but B.Des in Interior Design is a four years undergraduate course and not three years, so all the Colleges offer this course with a duration of four years, not three years, here I'm suggesting you some if the best colleges for same in India:

1. National Institute of Design, Ahmedabad

2. National Institute of fashion Technology, Navi Mumbai

3. Pearl Academy, New Delhi

4.  Symbiosis Institute of Design, Pune

5. National Institute of fashion Technology, Hyderabad

6. National Institute of fashion Technology, Kannur

7. National Institute of fashion Technology, Bangalore

8. National Institute of fashion Technology, Bhubaneswar

9. National Institute of fashion Technology, Chennai

10. National Institute of fashion Technology, Shillong


Hope this helps, all the best.