NATIONAL CADET CORPS ( NCC ) , It is a voluntary organization which recruits cadets from high schools ,universities all over India . The cadets are given basic military training in small arms and parades . The cadets in NCC also gets chance to march on republic day parade ( if you are really good in marching ) , you will also have a higher probability to get a job on defence service either technical or non technical divisions

Various certificate class in NCC

• Certificate A - taken by junior cadets  , 8 and 9 th class
• Certificate B - taken by junior cadets  10 - degree
• Certificate C - highest level of certification for NCC cadets ( olden days students from sainik school usually got NCC C certificate but now they get only B certificate and A certificate is only provided in colleges )

various engineering colleges in Tamilnadu having NCC are

1. Loyola-ICAM College of Engineering and Technology
2. Kamaraj College of Engineering & Technology
3. GKM College of Engineering & Technology
4. Sri Sairam Institute of Technology
5. Hindustan College of Arts & Science

over 774 NCC units is spread all over the country through 4880 Colleges and 7783 Schools

hope this clarifies your doubt

best wishes for your future