Hello Rahul,
Although both the colleges have their own strengths, to be-be specific, you can opt for the NIA over Bimtech, because of several reasons.
Firstly, it has better facilities and modules.
Also, it has an awesome alumni network, which would help you a lot, and
Lastly, in insurance, it's a bigger brand then the Bimtech.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile