I'll enlist down some of the institutions which provide DGCA certificate for aerospace and aeronautical engineering..

1. SHA-SHIB Group of Institutions is the largest group in South Asia for Imparting Training in the Field of Aircraft Maintenance Engineering
2. AME college, Mumbai, Maharashtra
3. Hyderabad college of aviation technology, Hyderabad
4. Regional Institute of Aviation, Pallichal, Vedivachan Kovil. P.O, Thiruvananthapuram
5. Vinayaka Mission Aviation Academy, Salem
6. Nehru College of Aeronautics and Applied Sciences, Kuniamuthur, Coimbatore

Best wishes. Thank you.