hey Debasish

73.678 is less percentile

it means nearly 26-27 percent students score better than you.

and your rank will be approximately more than 2.5lakhs according to the trends (but can be vary depending upon april exam and number of students)

And with this rank it will be not possible to get NITbecause seats are limited .Try to score atleast 98 percentile to get admitted in good NIT with good branch.

So you should work hard for next attempt.Good luck