Hi Ravi,
The Supreme court has approved only 3 colleges in tamilnadu.
1) RLI chennai, or CLI in Mumbai (Diploma in Industrial safety)
2) NIT Trichy (M.TECH in Industrial Safety)
3) MEPCO
Others you can do it in distance education itself from (Anna University, Coimbatore and Annamalai University in Chidambaram)