Suspected Fraud-Make My Trip Credit Card offer

Dec 8: Today I received a telephone call from 040-40502373 in the name of Make My Trip with an offer for a special HSBC Platinum credit card with two free air tickets. The offer was too good to be rejected. However when the caller wanted to know my Date of Birth and PAN Card number before proceeding further, it appeared that this was a suspected Identity stealing attempt. I am trying to get more details and a confirmation. In the meantime in order to keep public informed, I am posting this information here. I request public not to reveal sensitive personal information such as the DOB and PAN Card number to unknown persons as it may be involving a identity theft risk.