MakeMyTrip India — Suspicious Behaviour in Customer Care

I called Make my trip customer care [protected] for some help in web check in. My call got disconnected and then the same person called back from[protected]. He was talking in Hindi. He said he will help me check in but I must go through a certain process. He asked how I have made the payment credit card/debit card etc from which bank. Then he asked me to go to download Any Desk from Play store and asked me to punch a no. I became suspicious and did not proceed. I blocked the no and uninstalled the app.

I would request you to look into the matter as I don't see any reason for downloading Any Desk or any app for web checking.
Thanks