Dear student,
Sorry to inform you but you cannot do this. To take admission in automobile engineering is not possible if you have done your higher secondary education from the commerce stream.
It is mandatory to have studied Physics,Chemistry,Maths.
This the basic criteria which you have to follow.
All the best.
I hope this was helpful to you.

Is it possible for u to go back in diploma as u r in For Graduation.

Thanks,
Azim