Modi Hyundai — Delay and and threat of delaying more for delivery of a car

Address: Thane Modi Hyundai.On service road of Eastern Bypass

I have booked a Hyundai SX Petrol variant on 14.02.2021 at Modi Hyundai Thane through sales person named Tanvi. I was told that it will take 6 months from then till delivery.

During the tenure there was no information from Modi Hyundai and when I was enquiring I was not getting any response from the sales person. Now after 6 months I am told that I will not get SX petrol variant instead I was offered SX Executive.Anywas not satisfied at all, I accepted the change and I was promised that within a month I will get the SX Executive.

I was asked to make a down payment and I made the necessary payment.Then I was given a threat by the same sales person that if I don't make a complete payment within 7 working days the car will be given to some one else.
On 6th day itself I was told that the car is given to someone else.

I don't understand the kind of treatment I am getting from an authorised dealer of such a brand.

I need to escalate the matter to higher authorities and get my work done ASAP.Both my money and time seems to be wasted here.