You are probably looking tax efficient mode.
The stamp duty and other charges are state subject.
Check in your state…
And go thru:
Central Government Act
Section 17 in The Registration Act, 1908
https://indiankanoon.org/doc/561156/
TRANSFER OF PROPERTY ACT,1882
122. "Gift" defined
"Gift" is the transfer of certain existing movable or immovable property made voluntarily and without consideration, by one person, called the donor, to another, called the donor, and accepted by or on behalf of the donee.
Acceptance when to be made-Such acceptance must be made during the lifetime of the donor and while he is still capable of giving.
If the donee dies before acceptance, the gift is void.
123. Transfer how effected
For the purpose of making a gift of immovable property, the transfer must be effected by a registered instrument signed by or on behalf of the donor, and attested by at least two witnesses.
For the purpose of making a gift of movable property, the transfer may be effected either by a registered instrument signed as aforesaid or by delivery.
Such delivery may be made in the same way as goods sold may be delivered
https://dolr.nic.in/Acts&Rules%5CTransferOfPropertyAct(1882).htm