Krithika,
There are many threads under the same discussion in the past . Go through the discussions..
Moving to Boston area Indians moving to Boston-Need Help Relocating to Boston (Ipswich) Moving to Boston from NJ
But to quickly answer your Qs -
First of all you need to decide on a place, then you could check the schools. Else you could see the school ratings in schoolratings. com ( i think ) to decide on the best school in MA.
Closer to downtown, appartments are expensive.. Anywhere outbound, it is quite cheap.
I havent heard of many appartments that allow couple with kids to take in 1 bedroom. So, that does look like a no.
You dont have to get groceries from CA

, MA has plenty of Indian groceries and fresh stuff too..
MA is a lovely place to live in toto !
Welcome to MA !!