Hello,

The closing ranks for IITs and NITs may vary every year.According  to IIT JAM 2019 the closing ranks for Physics in general category in IITs is below 1000. You can check out the link below for details on the closing ranks in IIT : https://jam.iitk.ac.in/doc/JAM2019_cutoffRound3.pdf

The closing ranks for some NITs are given below :

NIT Agartala - 1456

NIT Hamirpur - 1288

NIT Jalandhar - 1255

NIT Jamshedpur - 1355

These are the closing ranks after round 3.The closing ranks are below 1500 in most NITs .It is difficult to get admission in IITs or NITs with this rank.But you could apply in the above NITs ,the cut offs vary every year.

All the best!!