AKTU - Dr. A.P.J. Abdul Kalam Technical University (UPTU) Lucknow Answered Questions

Please specify the entrance test in which you secured this rank, so that I may be able to populate relevant details. If you are talking about the UPSEE, use the predictor tool mentioned at the link provided below to predict your chances to secure admission in this institute.
https://www.shiksha.com/b-tech/course/b-tech-lateral-entry-institute-of-engineering-and-technology-iet-lucknow-194214

With an OBC rank of 2435 your general rank would be in between 10k-12k (a simple guess), I'm sorry to say with this rank getting into IET is next to impossible so don't hold any false hopes you can get into JSS and here also getting CS and IT would be tough for you.
Getting any other govt college is also difficult and even if you get one you might end up in not so favourable branch.
At last, what I would suggest is that if you have a one more chance in JEE MAINS then go for it because believe me giving another year to study is worth regretting about the college you would be with this rank to make myself clear try avoiding AKTU.

Congratulations on your excellent rank in UPSEE. Yes, you can easily get IET-Lucknow in computer Science in may be 2 round or 3 round of counselling. Do regular visit to official website of UPSEE counselling, for further updates about the counseling dates. Do like if answer is helpful.

Dear Deeksha,
I am assuming it to be your JEE rank. Check the link below to know the colleges you can get with this rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
In case you don't get your desired college, don't settle for something mediocre. Instead of settling down for some mediocre college, it would be better if your try for some good private university. Many reputed private universities are offering B.Tech in various branches. They have their different criteria for admissions. Some offer admission on basis of JEE scores, some offer admission on basis of their own tests and some offer admission on the basis of both. Some even offer direct admission on basis of class 12 marks. Some of the universities also offer scholarships on basis of your performance in class 12 or JEE or even during the course. You can check the details of any of the reputed universities like VIT, Lovely, SRM, etc. All these universities have a wonderful infrastructure and world-class facilities to offer to students apart from good placements.
Good luck.