Hello!

Congrats on your scores. Sir JJ College of Architecture does accept NATA score for B.Arch purposes, and the method of calculation of your NATA merit is 150/4 plus 77.4/2 that equals to 76.2 for you. Normally governement colleges which accept NATA score would accept your application, but this merit score may not meet the cut off of Sir JJ College. Do try to look into other colleges which might accept your application.

Good luck!