13th October 2017, Mumbai: Big Bazaar, India’s leading hypermarket chain for the 1st time introduces ‘PRE-BOOKING’ during its festive Diwali offers! It’s a limited period Pre- booking window which allows users to pre-book Redmi4 and Redmi Note4 for just Rs.1001 & other product offers at just Rs.101. The event begins on 13th October, 12:01 am.