Hi,
I have never really seen a Hot Meat puri on any of my menues but the basic sauce I make for say a chicken puri goes something like this
200mls base sauce
Pre cooked meat
1 tsp Garam Masala
1/2 tsp Cumin powder
1/2 tsp chilli powder (up it a bit for hot)
1/2 tsp Salt
1 tablespoon of mango chutney (no lumps)
Tablespoon oil
Heat the oil in the pan and add the base sauce, in with the spices, stir for a couple of minutes, in with the meat & mango chutney and a minute or so more your done. you can add red food colouring and fresh corriander if you like bit i tend to leave them out.