Spouse income on gift amount from retirement benefits

S64. (1) In computing the total income of any individual, there shall be included all such income as arises directly or indirectly

to the spouse of such individual from assets transferred directly or indirectly to the spouse by such individual otherwise than for adequate consideration or in connection with an agreement to live apart 

Income will be clubbed in your hands. If the amount is high enough to attract TDS u/s 193 . The bank will issue TDS certificate in your wife's name therefore inform them that this is from your money and TDS certificate  be issued in your name.

Otherwise she will have to file nil return to claim the refund of interest (If)