Purchase of agrucultural land

Hi,

My fatther is having 4 acres of agricultural land (common area) in name of himself along with 3 brothers and 5 sisters in maharashtra.  I.e. my father including his brothers and sisters hold this land and on 7/12 extract names of all of them is included.

I have got Agriculturist Certificate from Tehesildar  for my father and wherein my name is included as a son of my father. 

I would like to ask you, on basis of this certificate can I buy agricultural land in maharashtra ?  or would there be any problem while putting my name in 7/12 of new purchased land after registration.

Please advice me.

Thanks in advance

Sam.