Dear Sir,
File a suit against the purchaser as the sale deed is null and viod as it is a undivided property. Please refer the following:
Right To Joint Possession And Right of Pre-emption
There are two views in this matter. The purchaser has no right to joint possession of the property compelling partition. He can sue all other coparceners for that purpose. [32]
If the vendee has obtained possession, the other coparceners can get him ejected by a suit. All that the purchaser is entitled to in such a suit is a declaration that he is entitled to the share of the coparcener against whom the decree has been passed.
The Bombay High Court has a different approach. It gives some discretion to the court in the matter of ejectment of a stranger purchaser. In Bhau Laxman v. Budha Manku [33] the court laid down three rules:
First, if a purchaser stranger of the undivided interest of a coparcener in a joint family property is out of possession, he should not be given joint possession with the other coparceners but should be left to his remedy of a suit for partition.
Secondly, on the other hand if the purchaser has obtained possession of the property, a coparcener who has been excluded may obtain joint possession with the purchaser.
Thirdly, the purchaser in possession need not be ejected in a suit for recovery of possession brought by an excluded coparcener. The matter should be decided on merits because he is not a trespasser. In a suitable case he may be declared to be entitled to hold (pending partition) as a tenant-in-common with other coparceners.
The issue came to be discussed by Supreme Court in M.V.S. Manikayala Rao v. M. Narasimhaswami [34] . The court held that it is well settled that a purchaser in such a case cannot claim to be put in joint possession with the other coparceners. He has only the right to ask for general partition of the joint property.