1)you can effect a partition of the joint family property of HUF. among the coparceners Partition deed attracts stamp duty and must be registered.
2) Karta or managing member of a joint Hindu family has power to alienate for value, joint family property either for family necessity or for the benefit of the estate so as to bind the interests of all the undivided members of the family.
3) obtain NOC from all HUF member/coparcener for sale of property
4) as per article 46 of Bombay stamp act you have to pay stamp duty on the market value of the separated shares of the property .
5) it cannot be done on Rs 500 stamp paper