Pakistani, Indian filmmakers join hands to make 12 movies
Mehreen Jabbar and Bollywood's Nikhil Advani, Bejoy Nambiar among others to join hands for 'Zeal for Unity'
Bollywood veterans slam move terming it as a publicity gimmick and an insult
Some directors return their awards and others plan on responding through their work
Indian filmmaker hopes to drive move towards better relations between India, Pakistan