Engineering Entrance Exam

Can't say about the branch, but you'll get a NIT.

With 73 marks in JEE and with 81% in boards, your rank will be around 90000, if not more than that. With this rank you won't get admission into this college in CSE, even if you have the home state quota. The ending rank for this college is around 50000 and that is for chemical branch other state. So

Do u have any state preference? List them out! Your category?

no I don't think you will get a better college. you need to prepare for one more year for JEE and other engineering exams.

One can take pessat exam only once for MBA . Based on that you Will get score which is required for seat selection in the college.

I don't know your board marks, so I won't be able to tell you your actual rank. But, with 73 marks, just over the cut-off of 70 marks for OBC category of JEE mains this year, even if you have very good marks in your boards, your rank wont be below 40000 or 50000. With this rank you can only get admi

To get JEE rank 60% of your mains score and 40% of your board percentile will be considered

Yes you would be able to get admission in NIT.As getting 95 or above percentage in CBSE board makes a lot of difference in your rank.So may be that you would not get some branch like CS or Mechanical, but I guess you will get admission in some other branches.

If you are in General category then it is next to impossible to get admission in any good govt. colleges.
You should opt for any well reputed college in your region.

So pass it for what are you waiting.