Toyota — service fraud for innova crysta

Address:

560102

Recently i have gone for 20, 000km service at nandi toyota, typical oil change, oil filter change, wheel balancing and alignment, all put together they changed 4, 300 for parts and for the same job of pouring oil, changing filter and alignment they have charged me 4, 500+ for labour.
Now where on earth the labour for 2 hours job has gone up so high?
And they took the liberty to put add on service for cleaning duct and charge labour for the same. Without my consent.

They have charged me 4 time more than the actual labour costing. Pure malpractice of pricing & looting money.

I would like to proceed with registering a complain with indian consumer forum.