Recipe for the masala in "Masala puri"

I really want to try doing Masala Puri at home , exactly the way a street side fellow guy makes. Getting the taste at the comfort of your home is a good thing. Anyway you get the puris and the other stuff could be got at your friendly grocery store wallah.

But the big question is : What is the recipe for the masala in masala puri ?

Of course you cannot ask the guy because it is a trade secret. But we might have to build this recipe. I found one link which does talk about it.

Here is one such link :- http://www.aayisrecipes.com/2006/10/13/masala-puri/

But after eating this for so many years, I do not think I have found how this could be done.

Any ideas floating around ?