MUMBAI: Filmmakers Vikramaditya Motwane and Anurag Kashyap, who have together made the eight-episode web series <em>Sacred Games, </em> say that telling a story in a much longer format and keeping the audience engagement intact is challenging.

Raazi writer Bhavani Iyer will work with filmmaker Meghna Gulzar again on the biopic on Field Marshal Sam Manekshaw.