Pranjal as the rechecking result will be late and even you can't guarantee that after rechecking you will be able to get more than 75% marks so unfortunately you will be disqualified from the counselling process even if you are able to clear the JEE Advance cut-off because it is mandatory to have atleast 75% in 12th board examination to sit in JEE Mains exam and without clearing JEE Mains exam you are not eligible for JEE Advanced examination. WIth 74% in 12th class, unfortunately, you will even be disqualified from JEE Mains and so as in JEE Advance counselling.

If you think in re-checking there is any chance to get above 75 % then you can write a mail to official JEE Mains and JEE Advance email id specifying your query although don't expect to get a favourable decision.

Feel free to ask if you have any more queries. All the best!!

Sorry pranjal if that the case you are ultimately going to lose the weightage marks but since the weightage is less for the state board marks you need not worry.Good luck.