As insults go wiping off your hands after a handshake generally means that it was something nasty which you didn't really wish to partake of. Not sure if Microsoft CEO Satya Nadella knew how much of an eagle-eye Modi's bhakts are, because they spotted it. As did the rest of the social media world.
Being a country prone to taking offence, everyone kind of blew their lids off at the Macbeth-ism. Everyone has their own interpretation. For all we know Nadella just has OCD. And could probably do with one of those hand sanitiser bottles being sent to Zuckerberg .
Watch it on loop here: