Nothing really odd about this dish, or South Indian, when you realise this is from a Punjabi Style Restaurant Chain.
The dish in a Bengali BIR would translate into a similar Mughlai dish, which has many variants using Keema and Egg,
but can't say Iv'e ever noticed Dal included, but like Shahi, just means food fit for a king. (Traditional Roots)
Good luck making this

cheers Chewytikka