Helloo...,
Agree with the experts reply...
Coming to documentary evidance... it's better to take the gift deed either on non-judicial stamp paper / plain paper from your Brother to face the future problems and to proove the geniuneness of the transactions... before the AO...
One more strong suggestion is that it is better to obtain the PAN Card and the Assessment Order / Income Tax Returns & statement of affairs of the Person who is gifting.... which supports you to prove the source of the person who is gifting you (i.e. Donor)....
I hope this information will be help to you...
Warm Regards
Varaprasad D
varaprasad21410 @ gmail.com