As his colleague starts looking at the clock, Arora says human behaviour has remained constant through the ages; it's only the platform that has changed.
"For example, earlier, people used to gossip, share notes and catch up on the latest at small gatherings in front of the ubiquitous paan ki dukan. Now, they do it on Facebook."
Before winding up, I ask him the inevitable question - what next?
At 45, he has already reached the top - well, almost - but won't he remain just the tallest pygmy in a company where the founders are much younger than him?
Arora smiles and says he "does things to undo the pattern every time his life takes on a steady pattern".
But he still loves going to office every day in a company that loves disrupting conventions, and where his colleagues are always excited about solving the most complicated of technological problems.
Messrs Page and Brin would indeed be proud of their ace salesman for that answer.
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