New Delhi -- Eminent director Manmohan Desai was the first person to introduce vanity vans in Bollywood, said actor Amitabh Bachchan. The veteran actor was also gifted one by Desai those days. At the studios these days, the largest space is taken up by the vanity vans for artists, talent, directors, writers... It was never like this in our time... ok... like earlier days! At times for an all night shoot, you just dozed off on the floor of the set... getting a room was a luxury. But Manmohan Desai, the master, was different. He had a back problem and needed to lie down as he travelled to the sets, so he built himself a van where a bed could be placed and put up a television set inside, something that was unheard of..., posted Bachchan on his blog. Big B was associated with the director and the duo delivered many hit movies like Mard, Coolie, Naseeb and Amar Akbar Anthony.