I would order a bunch/all the chaats, all the things on the “sides” (chutney, achars, etc.), a few parathas for the table, and beer. Lots of beer. In the absence of beer…well, you do you. 
It does look mostly like Northern recipes and agree with others assessment that they likely use “mother sauces”. Doesn’t mean things won’t taste good, but that can mean the sauce won’t always be dialed in for the specific protein (generally). I don’t think anything will be “hot” hot (maybe the Vindaloo (Goan) or Kohlapuri (Maharashtrian)), but hopefully well spiced. I hope you report back and let us know!
