Hey,

These are some of the colleges where you can complete your distance learning course in automobiles in Tamil nadu-

IIMT Studies- International Institute of Management, chennai
Wisdom School of Management, chennai
Aalim Muhammed Salegh Polytechnic College
HIET - Hindustan Institute of Engineering Technology
Thiruvalluvar University
PGP Polytechnic College - PGPPC

Hope this helps.