This is just a case of broad daylight loot from VW. But there could be many reasons for them to put up such a high cost! Vento is the best selling sedan these days, and if they have to continue on the same path, they need to bring down those exorbitant pricing for services and after purchase costs.
In that price, anyone can order good alloys from beyond seas including freight!!!
EDIT: thanks Dhaya for putting up this in a post. The more voices it creates, more chances it might affect.