Which one is a better option for studying MBA between the two of ISB&M Nande campus, pune and ITM , Navi Mumbai?

ITM Navi Mumbai is definitely a better option than ISB&M Nande campus because from what I have heard the latter is in shackles and its quality of education is also deteriorating. One of my friends completed her PGDM from there and claims the institute ruined his career terribly. 

The first year was normal and then suddenly in the second year, they shifted the campus to Mulshi (near Mulshi Dam). This shift brought many issues related to infrastructure. Moreover, the faculties showed no interest in coming all the way to Mulshi as it is pretty far from the city so the students were taught by poorly qualified professors. The food served in the mess was highly unhygienic and many students fell victim to this falling seriously ill.

I will seriously advise you not to join this institute even if it’s your last choice.