Hello Dear Student,
OBC (Other Backward Castes) and OSC (Other Social Castes). Both are different.
Castes included in Central list of OBCs are eligible for benefits of Central Government Schemes & Reservations in all over India.
While OSC is a special category created by Jammu & Kashmir Government in which Specific Castes are included and they are eligible only for the benefits of State Government Schemes and State Reservations. As a OSC Candidate, you can not take the Benefits of OBC, So OSC and OBC both are separate.
All the Best
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