Dear Ashish,

congratulations that get rank you have and a pretty good chance you get a good institute.

CSE/IT both are great branch and both have some good similarity. If you want to go in detail work then your option is CSE and It has good demand in the market it also has good jobs opportunity. And if you want to belive that you are good in the surface of the software field that you should give a vote to IT its has also good jobs option.

Good luck.