1) gift deed has to be properly stamped and registered .
2) unless it is registered it is not admissible in evidence .
3) even a partition deed wherein division of property has taken place is required to be registered .
4) it is necessary to go through gift deed mentioned by you to further advice .
5) from the facts stated by you it appears that title to land is not clear and marketable .
6) still if you want to purchase the land obtain title clearance certificate from local lawyer and then take a call