Hi Aspirant!
Diploma in mechanical is considered better and more demanding than diploma in automobile. As automobile/automotive is branch of mechanical. Mechanical covers vast syllabus which includes automobile also. After completion of diploma in mechanical engineering you can start your career in manufacturing/tool/automobile industry, PSUs etc. On the other hand, automobile diploma is restricted to automobile industry only.

Top colleges which offer diploma in mechanical engineering are:

• Lovely Professional University
• Jamia Millia Islamia, New Delhi
• Techno India University, Kolkata
• Integral University, Lucknow
• MSU Baroda

To know more, visit here:

https://engineering.careers360.com/colleges/list-of-diploma-in-mechanical-engineering-colleges-in-india

Thankyou!