Hi there,
Hope you are doing well.
According to the reservation policy, there are 2 categories in OBC:- OBC and OBC-NCL.
Normal OBC Category is the creamy layer OBC Category, which doesn't enjoy any type of reservation benefits and is treated equally to General Category student while OBC- NCL is the OBC Category with annual income less than 4.5 lakh which is really the reserved OBC Category and have reservations in the Competition exam and Jobs.

Hope it would help.
Thank You.