Johar's segment stars Rani Mukerji, Randeep Hooda and Saqib Saleem and he has chosen real location in Mumbai to shoot his part.
Zoya Akhtar, Dibakar Banerjee and Anurag Kashyap are also contributing to "Bombay Talkies", an ode to 100 years of the Indian film industry. It will come out May 3.
SRK-Gauri anniversary: B-Town stars and their non-filmi better halves
Birthday special: Popular mothers and daughters in Bollywood
Spotted: 'Kaabil' star Hrithik Roshan with dad Rakesh Roshan
'Rock On 2' trailer launch: Farhan, Shraddha enthrall audience with live gig
Photos: Deepika Padukone, Sushmita Sen with daughters at Mumbai airport