Tata Motors — Delay in delivery of Tata Nexon XZ+ Petrol variant

I booked Tata Nexon XZ+ Petrol variant in Foliage Green colour on July 8th, 2020. Dealer promise me that they will deliver the vehicle on July 31st, 2020. Still today that is September 03rd 2020. they have not delivered the vehicle and they are saying like still vehicle is not billed from Pune plant itself. I don't understand, really vehicles are not getting billed from Pune plant or the dealers are selling the vehicles with on price in the local market. Do we really we need to wait for more than 60 days to get vehicle delivery to us? Dealer Name is Aadhishakthi Cars, Shimoga, Karnataka.