Hello

You can give acting auditions without doing any acting course because most of the time they will consider your experience and acting skills. Education is not given that much priority in this field however still you can pursue acting courses which will give you an edge over others. It will also helps you in exploring unexplored dimensions of acting.  Some top acting colleges in India are as following.

• Film and Television Institute of India, Pune
• National School of Drama, Delhi
• AAFT, Noida
• Satyajit Ray Film and Television Institute, Kolkata
• Barry John Acting studio, Mumbai

Hope this helps.

Best of luck!