sir can i get addmission in dtu or nsit with sc rank 41764 and crl rank 5553212. please sir help me to try to find out colleges.

I think you had typed wrong CRL rank because it is approx. 55 lacs. If you have sc category from Delhi  than you can get admission in DTU but you will not be able to get any core branches. DTU offers 15 courses in b.tech out of them you will be able to get admission in branches like PIE, PCT, EP,ENE,biotech etc. In DTU. You can also get biotech in nsut. But it will be difficult for you to get admission in IIIT-d. You should fill the choices in choice filling by registering online at jac delhi website to participate in counselling process. There will be 6 rounds of cutoffs and one spot round.
You should fill all the branches in the choice filling because you will be able to get admission till last round or in spot round.
I hope this will help you.