My all over rank is 127608 and 1603 in ST category i want to know that am i eligible for nit's if yes then which college i m get seat
Based on your score the chances might be there for lower NITs. You can also check JEE Main cutoff with the given below link.
You can check your admission chances with JEE Main college predictor tool given below.
JEE Main College predictor tool
Good Luck!