"Ombay-Ombay" joke

One Day Gyane Zail Singh And Indira Gandhi Were Togethere Going To Bombay In A Cab. Gyane Zail Singh Was Very Excited And
Started Singing -"Bombay-Bombay."Indira Gandhi Got Fed Up And Said-"B Silent." So He Started Singing -"Ombay-Ombay."