NIT

Hello Sujitha,
With your JEE Mains rank, you have only low chances under your category, to get admission at a top ranking NITs or other colleges. However, if you wish to know your chances, you may use the college predictor tool below :
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
For knowing the possibilities with COMEDK scores :
https://www.shiksha.com/b-tech/resources/comedk-college-predictor.

Hello Purandhar,
There is a PwD category which has some seats reserved such as for SC, ST, etc. Hence, the PwD category rank determines your admission. The JEE Mains rank is used for getting a seat at NITs, IIITs and GFTIs.

Tell me your rank and category.

Hi,
Visit this link to check colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Good Luck. Hope it helps.

Hi,
No, integrated M.Sc course is a single degree course in pure science in NIT. For more information, check this link :- https://www.shiksha.com/science/articles/top-bsc-msc-entrance-exams-in-india-blogId-13484.

You belong to which category?

You can visit this link predictor for better results:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

No,
It's not possible for you to get admission in any of the NITs or IIITs or GFTIs. You have to go with low tier private colleges, use the college predictor tool to know in which colleges you can get admission.
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

No, this is not possible for a Diploma holder for NIT colleges through JEE Mains but you can directly take admission in IITs through LEET examination in the 2nd year of engineering. LEET examination specially conducted for those who want to take admission in IIT after Diploma.

You can get those rank on the official site of JoSAA.