Ford India - Exorbiatant amount charged for mechanical defect

I am using a **** model Ford Ecosport Reg No. WB**-AD-****)
Last week I faced the problem of the Reverse gear (R) not working. The front gears (D,S) were working. I contacted the service center (Kaikan Ford). They picked up the car. Now they have quoted an estimate of INR *,**,***.** + taxes (total *.** lacs). This is an unbelievable amount.

My car has always been a single person driven one. I always got it serviced from authorised service center at proper time & intervals. My car is never overused. Its always maintained well.

The snag developed on its own. I did some enquiry and got to know that the Ecosport model of ****-** has this problem of Reverse gear ceasing to work. The service center personnel in charge of my car also told me that he had recently handles a similar case and the car was a make of the same period.

I have been using and maintaining my car properly. Still, the problem has arise due to mechanical defects. Now, I am being asked to pay to rectify it. This is absolutely not acceptable. This is a manufacturing problem / technical problem and should be resolved by the manufacturer (Ford). Why should I pay such an exorbitant amount of money for no fault of mine?

The pic of the estimate is attached herewith.