Amitabh may star in Deepa Mehta's film

Deepa, revelling in the astonishing success of "Water" in Canada - the film continues to be record-breaking grosser in its seventh week, is waiting for Bachchan's green signal.

"The lead in my film 'Kamagata Maru' can be played by no other actor except Bachchan," Mehta told IANS.

"The hero of my most ambitious and expensive film has to be a man of substance, stature and wisdom. I can't think of anyone else but Bachchan," says Mehta.

Meanwhile Deepa has finalised the rest of the cast.Seema Biswas , who has received the maximum raves in the international press for "Water", and John Abraham will play key roles in "Kamagata Maru".

Deepa has also penned in Terence Stamp, the charismatic British actor from "Billy Budd" and "Adventures Of Priscilla Queen Of The Deserts", to play the crucial role of a lawyer.

"I can see Bachchan and Terence together on screen. They'll be dynamite," predicts Deepa.