'Indira Sawhney' case is related to which of the following matters?

The correct answer is Option (4) → Reservations for the OBCS in central government jobs.

Also known as the Mandal Commission case, this landmark 1992 Supreme Court judgment upheld the government's decision to reserve 27% of central government jobs for Other Backward Classes (OBCs). However, the court also introduced the concept of the "creamy layer," which excluded a certain section of the OBCs from the reservation benefits based on their economic and social status.