Producer Romu N Sippy, who is known for films like ‘Anand’, ‘Chupke Chupke’, ‘Satte Pe Satta’ and other memorable Amitabh Bachchan movies, speaks to ETimes on the occasion of the superstar’s 80th birthday. He reveals why Amitabh Bachchan was able to replace Rajesh Khanna as the veritable superstar of the country. He also reveals key details of why Hrishikesh Mukherjee took such a liking to Mr Bachchan. Read on to discover unknown stories of Amitabh Bachchan’s early years.