Hello Pavan,

Since you have about 1k rank in JEE Adv in ST category, I am sorry to say but no you won't be eligible for any IIT in CSE Branch.

With your current rank, you may get a few other branches in the bottom tier of IITs. As per as other colleges are considered, Only BITS Ranchi accepts JEE Adv scores but there too you would need a higher score to get enrolled into.

According to me, I think it would be better if you would repeat the exam and try again next year. For CSE, you will need around 150-200 ST Rank in IITs.

Hope this was helpful and Good Luck!