Overview

• Flipkart’s latest Big Billion Days campaign features mathematician and author Dr. R. D. Sharma rather than the usual film or sports celebrities.
• An Instagram call to action invites users to post quirky, real‑world math problems, with top entries promised as converted deals during the sale.
• Memorable lines in the video — including “Naam toh suna hoga” and “Pi bhi irrational hai aur mai bhi” — fueled swift, enthusiastic online reactions.
• The Big Billion Days event is scheduled to start on September 23, with discounts reported across phones, electronics and home appliances.
• The spot was conceptualised by the Talented agency and directed by Anant Sharma, according to coverage of the campaign.