Hello

Can you please help with your category please?

To be eligible for admission in NITs one needs at least  75% marks in aggregate in class 12 if belong to general or obc category or at least  65% marks if belongs to SC/ST or  must be in the top 20 percentile in  class 12 examination.

Now , tou have got 74.6 percent i.e less than 75% so you are not eligible for NITs if you belong to general /obc category but if you belong to Sc or St category then you are eligible for NIT as your percentage is greater than 65%

For detailed information go through

https://engineering.careers360.com/articles/jee-main-eligibility-criteria

Thankyou