I was in London for a week last year and I went to that exact Dishoom three times, twice for breakfast and once for dinner. Probably my favorite meals of that trip. Everything was delicious, and I ended up buying a tin of their chai so I could make it at home.
I can highly recommend their cookbook if you’re into cooking. Their chicken ruby is probably one of the greatest things I’ve ever put in my face.
They call it chicken ruby but it’s basically a butter chicken/tikka masala.