Easy to find on the corner of the street, right near the skytrain station with a HUGE illuminated Vegetarian sign! They have a massive menu of dishes, including some we'd not heard of before.
There is a lot of dairy - particularly in the drinks, though there are juices and teas too. But with so much choice on the menu it's not hard to find something.
The person who served us didn't have great English and one of our starters didn't come.
But the food we had was tasty and the portions were filling. We tried a channa yam starter, regular dosa and one with mint and onion in the dosa.
Pleasant atmosphere with a diverse mix of diners including local Indian families, good air-con and windows onto a busy corner of the street if you like watching traffic and people go by.
At about 700 BHT for 2 (including drinks) it isn't cheap by Thai standards but similar to the similar places in the area and we actually preferred it to Dosa King.
Cons: Could mark vegan dishes on menu, Forgot a dish we ordered