BENGALURU -- It's around 4.45 p.m. on a balmy Friday afternoon in Bengaluru and I'm sat at home glancing at the clock on my bookshelf in nervous expectation. The seconds tick by.

Quick commerce startups such as Swiggy, Blinkit, Dunzo and Zepto promise rapid deliveries of everything from chocolate to diapers. (Source photos by Getty Images and Reuters)
Promise of 'instant gratification' shakes up the retail landscape