A few years back I spent some time in India and one of the things I liked best was the food. It was a great deal less greasy than the typical Indian food we get back home.
It seems that the restaurants back home have learned to give the customer a version of Indian food in keeping with the lifestyle that most people lead and that generally means quick and greasy. There are also chips on the menu which I just didn’t get in India also made by frying. An Indian meal for a western way of life.
The thing is that a curry is now the nation’s favorite food. Indian restaurants have worked out how to give the impression of authentic Asian food matched to the customers needs.
The customer gets what the customer wants. The company gets what they want so both parties win.