With a 78 percentile in JEE Mains and EWS category, your approximate CRL (Common Rank List) rank would be around 2.4 to 2.6 lakh, and your EWS rank could be around 30,000–35,000.

Admission Chances:

NITs:

Very low chance for core branches (CSE, ECE, etc.), even in lower NITs. Cutoffs for EWS category in NITs are usually under 15,000 EWS rank.

IIITs:

Slight chance in newer IIITs for non-core branches like Mechanical or Civil, but still difficult for CSE.

State Quota:

If you're from a state with home quota in an NIT, you may get better chances in spot rounds.