That throwaway reply from the Mumbai controller reminds me of something that happened long ago at Edinburgh. A BEA Vanguard had just arrived and the crew had been made aware that they were the subject of a telephoned bomb threat.
"Tower, Speedbird XX where would you like me to park?"
ATC: "As far away from the tower as possible!"
These things were not taken so seriously in those days but there was a complaint and the culprit was admonished by the boss.