Hello Student

As you have got an NIT Jamshedpur so you have to leave the  your previous college and with TC and migration from the college to submit it to th NIT Jamshedpur for B.tech course. If there is any shortage of document or in case you have not able to collect the migration or TC certificate from your previous college then you have to apply to the authority of  NIT, Jamshedpur  for allowing you the time  for this purpose to submit the migration and this TC certificate from your previous college.

Hope this will help.