Tata Motors — I am not getting my car after the period of 1 month of issung of availability certificate of my car

Sir I am a army person i booked tata nexon XM on 5th of feb and they provided me availability certificate for car to CSD on 7th june so according to that i came to home and now i have to go back on 10th july and i told them that i want my car on 7th july but now they are saying that you have to wait till 14th july now tell me i will come after 5 months so is this a right bheviour now i want my car at time i can't compromise more so please avail my car at time.