In a nutshell:
A pretty good option for those missing good Bengali food in Delhi / those who want to try out Bengali food without spending much. Good but not the best for connoisseurs.
Meal for 2: Rs. 250 onwards

Cuisine Type: Vegetarian & Nonvegetarian
Description:
Fish fry was excellent – Flaky & juicy fish within, flavors of Dhania & very crisp crumb outer layer. Overall – loved it. Bengal Hotel in 14 no. Bus Stop Behala is surely better than this but this is one of the best I have had in Delhi (leaving apart Oh Calcutta). What needs special mention is the mustard sauce (kasundi) served with the fish fry – its too good – its so ‘powerful’ that as soon as it lands on the tongue, it immediately hits the sinuses.

Mutton Biryani had an authentic flavor, mutton pieces were as good as they cud get but the rice was not long grain as expected & surely did not have the flavor that the rice adds to a biryani. Overall experience of Biryani – If Aafreen Metiabruz Kolkata is 10 & Arsalan park Circus Kolkata is 8.75 then this is 6.

Kosha Mangho – Slow cooked mutton Kolkata style (which typically needs constant stirring during cooking) was very good – though Arsalan Park Circus Kolkata is much better.

Moglai parota is also good here.
The Rosogolla served was a disaster – it was chewy & had thick ras (sugar syrup).
Sadly they do not serve the excellent aerated beverage that they themselves bottle & sell in Kolkata – ‘ice cream soda’.
Overall – Good occasional munching when hungry & around the shop / not in a mood to spend much. If in a mood to spend more & have a much better deal – Oh Calcutta is the place to be.