Hello

Both NM and mithibai are well know college in mumbai and both have good education and placment history..

Lets compare on a wider section :

NM cutoff is much higher than mithibai

Managenment and infrastructure is good in mithibai than in NM

Nm is more strict than mithibai .In Nm you got intellectual student than in mithibai.

If you are more focusing on studies than can go for NM or if you want some non stict college than can go for mithibai..

Feel free to ask..

GoodLuck..