Property Documentation

1 year ago

Father gives a small flat to married daughter-only child 4/5 years back.Due to builder conflict with land owner registration got delayed and process starting now.In the meantime father wanted to gift the flat to daughter and requested builder to change the name of owner.builder made a tripartite agreement with father and daughter about the transfer of ownership of the flat in daughter name and issued letter to building society.In this agreement it was clear that father is giving the flat as a gift.The letter of builder also indicates the transfer of ownership and the fact that it was a gift to daughter.
The agreement for transfer of ownership contains signature of builder ,father and daughter.It was notarised,with notary signature and stamp but there is no signature of any other witness .The builder said when there is a trilartite agreement and they have issued a letter detailing the reason(gift) and change of ownership,simple notarization of agreement is enough.No witness is needed.

Please tell me if the above notarised agreement,without witness signature is valid.