Most of the original Indian population left a long time ago. A few weeks ago I had a Lyft driver, gujarati guy who lived on 73th since 1977. He said that even then, very few Punjabis/Gujaratis actually lived where they worked. Nowadays it appears to be mostly Bangladeshi or South Indians in the area.
Samudra has a special place in my heart as does Raja Fast Food. Both places are great but not necessarily exquisite. Indian Taj is par but gives generous portions for take-out and is still better than 90% of what you'll find across the country. The best Indian restaurants in NYC in my opinion are in Curry Hill and in Eastern Queens (Dosa Hutt and Punjabi Express in Jamaica come to mind).
Still great to have Patel Bros in the neighborhood and the Apna Bazaar. I feel no reason to complain, especially given the recent boom in Thai/Malay restaurants. New, equally exciting flavors have replaced the old.