Zulaikha Motors — irresponsible talk to customer

Hello sir
My name is hariharan and my friend name is iyappan. We both are doctors. We were planning to buy a car in budget of $100000. So we planned to see ford, hyundai and mahindra showroom. We went to mahindra showroom in velachery, chennai in nov 2017. We told the sales executive that we have many ideas and we are planning to buy by march 2018. But the sales executive called my friend today and he told him that "why you didnt buy the car and wasting my time". My friend replied to him that "i need some time because the money is huge" and he replied that "if you dont have money then why did you came to the showroom"
This is the way he replied to my friend sir. Sir as a comman man is there any rules if we come to a showroom we should buy a car compulsorily?
That sales executive insulted my friend sir. This is not the way to treat a customer sir. Its hurting a lot to me becuse i only took my friend to that showroom. Sir please kindly take necessary steps against him. And the sales executive name is raja (Velachery, mahindra showroom). Sir kindly reply to me regarding this complaint sir.
Thanking you sir