Hello Skanishka

I hope you are doing great. As per your query , I am very sorry to inform you that at your rank you holds low chances of getting cse branch in tamil nadu because cse closes at 10k every year. However, their is high  chances you will get IT and ECE easily , so my advise is to go for them as atlast in placements all students get same opportunities. Moreoevr, if you work hard and make good command on coding you will easily be placed with a decent package

Hope you found this answer helpful. Good luck for your future