Exam

Yes, you will definitely get admission into NIT/IIIT because admissions are given upto 25000 SC rank holders. So, no need to worry, choose your home state NIT.
Go for counselling.

Yes, you can. Try Shiksha college predictor.

Your rank is too low. Try private colleges as there is no hope in government colleges.

Yes, you can get CS.

It's better to join central government universities like HNBGU, CuH, NEHU rather than joining private colleges of Jaipur. I will suggest you to take an year drop and prepare well for next JEE exam.

Hi Vikash,
You can go for CAT. But remember that you will not get an interview call from any of the top colleges including IIMs, FMS, etc. You may be able to get into one of the private colleges depending upon the cost score that you've scored.
Given that you have low marks in school and college, I

Hi Murali,
If you get admission into an IIM, getting a loan is very easy process. All the banks like SBI and CBI provides education loan at a decent rate. In fact you can go to the IIMs after admission and you'll find a lot of bank personals sitting there and ready to give you a loan in just 5 mins.

Hello Kunal Shinkar,
Yes, GATE score is used in many PSUs for recruitment:
So, try to score high in GATE exam, & get a job in PSUs.
Check how to get a job in PSUs: https://www.youtube.com/watch?v=HFjFFBcUW2A

Hello Sachin Vishwakarma,
There are so many colleges which provides admission without any entrance exam score. You can take admission in those private colleges & Complete your graduation easily.
Best wishes.