Hello AP.

Top institutions providing graphic designing course are:

• Asian Institute of Design:- Provides Diploma in Graphic Designing. 3 months full time course and admission through AIGA Test.
• IIFA Multimedia- 6 months part time course providing Diploma in Graphic & web designing.
• Creative Alchemist Institute for Art, Design & Technology- 6 months full time course providing Professional Program in Graphics & Visual Design.

Hope this helps. For further queries feel free to comment down below.

Good luck!