Prakash Raj has clarified that his tweet on Chandrayaan-3 was a reference to Kerala 'chaiwala' joke from the times of Neil Armstrong, the first man to reach Moon. "'You'll find...a...Malayali...even on Moon' is a 1960s joke that speaks of how Armstrong landed on Moon to find a Malayali with a tea shop...[It]...meant that Malayalis [are] everywhere," a Twitter user commented.