Nexa — Worst experience - Bought XL6 Alpha PLus Variant

Bought the car on 14.06.2022 Asir Nexa showroom, Madurai, Tamil Nadu.
After buying the car I am of the opinion that Maruthi is engaging their dealer not only to sell car but also steal the CUSTOMER money as far they can.
From the day one the sale executive/ relationship manager everyone in the showroom lie to their bones. I wonder how they are trained to lie in such a manner. If you confront them they will not pick your phone or give the phone to some random guy and ask him to speak as manger of the showroom.
I was forced to by extended warranty, accessories for 15K. Which I strongly objected
Relationship manager and showroom manager lie to me that XL6 alpha plus does not come with spoiler. Hence they have to put a stock spoiler and paint the spoiler to match the body color, for that they asked me to pay charges. They showed the stock seat cover and told me that they installed new seat cover. After dealing with them I am so confused what comes with car and what doesn’t? Going a step further after paying 75% of the amount they said, if I didn't buy extended warranty maruthi will not deliver vehicle on time. Maruthi will give preference only to the CUSTOMER who buy extended warranty. Using the waiting period for their advantage they are not telling about any offers available.
For buying 16L worth car I was given body cover, which was given to me after 20 day wait and they asked me to pay 600 extra.
Thinking of the car dealers/ Sales manager attitude makes skin crawl under. I wonder these happening due to under sight of maruthi over their dealer or maruthi is not giving enough profit to their dealer. As maruthi selling large number of cars, so why bother about the CUSTOMER. I have suffered enough and this will be my last car from maruthi.
Even though they don’t give ### about this review. I hope, I will live long to see your downfall.