Tata Motors — waiting for my car

Address:

New Delhi, Delhi, 110005

My name is santanu adak, i live in new delhi.. I booked tata nexon petrol variant top model (Xz+) blue colour on 25th september 2017 from the tata motors showroom which is situated under the akshardhyaam metro station.. The staff said the car will be ready in 6 weeks. I have waited 8 weeks, but yet my car is not alloted.. When i asked to the car dealer about this, he said that the company is not providing the specific car.
I'm too much frustrated right now, plzz look through this..