How much marks are needed for OBC category in JEE (Advance) to get CSE in IIT Delhi?

Never target a fixed score if you are planning to clear JEE because the level of difficulty of the exam varies every year. The closing rank of an OBC candidate is 340 for the CSE branch at IIT Delhi. So, on a rough estimate, a score of around 230 might get you into CSE as an OBC student. However, you wouldn’t limit your capabilities to your branch but give your best.