hi,

OEC   Category that stands for Other Eligible Communities. And this category is seen in the kerala state , however you must know that private medical college do not participate for all India counselling, private medical colleges are only participate for state counselling. OEC category is a state level category and being from OEC category you can get benefits of sc, st category depends on your certifications. however there is no separate cutoff available for oec sc or oec st for private colleges of kerala.

you may follow the below link to know about past years cutoff:

https://medicine.careers360.com/articles/neet-cutoff-kerala