Hi ,

Yes certainly iits and nits give admission to the students if their percentage in their boards exam is above 75%

In your case, in present scenario since your percentage is less than 75 you are not eligible for the admissions. But after giving the improvement next year , if your percentage crosses the 75% mark , then you are absolutely eligible for the admissions in iit and nit.

You do not need to worry since if your percentage next year is above 75 since you can certainly get an admission in iit and nit . So presently you should focus on your studies and try to  secure the marks so that you are eligible for the admissions.

Also, the admission criteria to the iit and nit changes yearly , so it is advisable to regularly keep checking the official website and knowing about the present case scenarios and then prepare accordingly. You should visit the official website next year and know about the changes if there is any.

Hope this resolves your query.