India Palace in Chelmsford opened a couple of months ago. After a coworker of my wife's suggested it, we gave it a shot while some guests were in town.
It was very good. Large menu with a lot of meat and vegetarian options. The Naan is quite good as well. I like lamb, and the lamb korma was really good. The chicken korma was also good. It's definately worth a try, I thought it was better than Bombay Mahal in Lowell.
They also have a lunch buffet, and according to the employee we spoke to for a while, the weekend buffet has more of a selection of appetizers and desserts, so that'll probably be what we try next.
This is the third location for them, with the first two up in New Hampshire. Both times we've been there for dinner, the dining room has been nearly empty, so I hope that people start going there so they don't have to close the doors.