Hlo Dear condidate

With the percentile of 74.8 in JEE Main, you can expect your All India Rank to be around 225000-227000. With this rank, you have no chances of getting a NIT through open quota (AIR), but since you are from SC category, you may get a seat based on your category rank (still there are very less chances through category rank also but you can try).

Also, this is not the end. You have a chance to improve your score by performing well in JEE Main April attempt.

To predict the colleges that you may get with this percentile.

thank you  best of luck