The best post-12th design course depends on your interest and timeline. If you're sure of the discipline (fashion / interior / graphic), a 3-year BDes / BSc gives you the deepest preparation. If you want to enter the industry quickly, a 1-year diploma is the most efficient route. If you're still exploring, a 6-month certificate lets you test the field with low commitment. INSD Ahmedabad offers all three across fashion, interior, graphic, animation and UI/UX design.