Partition of property

yes. they may claim as the legal heirs have right over an ancestral property.

Yes, they can. But, if they do not have any claim over the property, get the release deed from them, so that their LRs could not have claim in future.

@jagadesh

Since it is an ancestral property, your father's sisters can also ask for a claim in the property. It may also happen that, even if your aunt are not interested, their legal representatives, their children, could ask for share in the property. Therefore, it is suggested than you get the release deed from the concerned people.

You should consult a property a property lawyer for the same. I would suggest you log on to www.lawkonect.com. Here you can post your legal query and practicing lawyers would give you a written response to your question. The reply would consist of the legal procedures as well as the concerned laws. You can even schedule a telephonic consultation with a lawyers as per your convenenience on www.lawkonect.com. 

Regards,