The Bachchan family was known to be close to former Samajwadi Party leader Amar Singh. But their relationship soured a few years ago for reasons still unknown. During an event When Amar Singh was asked about Amitabh’s Panama case, Amar Singh reacted shockingly.   Also Watch: Amitabh Bachchan bagged National Award for ‘Piku’; Aishwarya accompanied her Paa