When you spend quite a long time in Thailand, it can be a pleasant change to have somethig other than Thai food to eat, but also it can be quite difficult to find good quality non-Thai food.
This place is quite good. There are plenty of choices if one speaks to one of the Indian managers to clarify your dietary needs.
The menu prices are also fairly decent for a non-Thai place. I had Sag aloo which was great, and a daal dish which was too oily. I also had a vegn Peshwari naan which was good.