Money M.
Yelp
As an Indian, there's something I can tell you, must try. Must come back. I've been to the few others in vicinity, but this is the only authentic Indian restaurant.
To start with, the pappadum could have been roasted instead of being fried (it's eaten roasted in North India, fried in South. But this is a North Indian restaurant).
The starters are always a raw deal in most Indian restaurants in Europe (except UK). This was no exception, very few choices and just about decent.
But hang on a second, main course, that's why you come to an Indian restaurant and boy this scores! Tell them your choice of slight to extremely spicy (as I did) and it was just perfect. I had 3 outings and all very excellent. The rice was well cooked, naan was excellent. Curries were superb.
It's on the main street, relatively small. Prams can be a little problem.
Best in Oslo, easily.