Hello,

Category wise minimum marks required in PCM is :-

1. General Category:- 50%
2. Backward class(OBC):- 45%
3. MBC/DNC:- 40%
4. SC/SCA/ST:- 40%

To calculate Cutoff marks of TNEA:-

Sum of [(Physics/4),(chemistry/4),(Maths/2)]

candidates who have scored mark above than this cutoff mark is qualified. Cutoff rank depends on lots of factors as there will be many candidates who have same score. these all value will be normalized and rank list for AIR and category -wise will be released.

For more details please go through the link below:-

https://engineering.careers360.com/articles/tnea

Hope it helps!