Ayan Mukerji is an Indian filmmaker who works in Hindi films. A member of the Mukherjee-Samarth family, he is known for his collaborations with actor Ranbir Kapoor under Karan Johar's production banner Dharma Productions. From Wikipedia
Aditya Chopra is retooling the spy-verse to prevent repetition by shifting focus to Dhoom4, War2, Alpha