Pressure cook the peas with a little water till soft and done. To make the Pani: Boil a glass of water with a small square of jaggery (you can substitute broan sugar if jaggery is not avaliable, but it will not give you the same taste). Add 2 teaspoons of roasted cumin and the thick juice of one lemon size ball of tamarind.Boil.Cool To make the sweet Chutney: De-seed the dates. Blend into a smooth paste the dates, juice of the other lemon size tamarind ball, a little jaggery, 1 tsp roasted cumin powder, the coriander seeds and salt to taste. To make the hot Chutney: Season oil with mustard,add the green chillies, coriander leaves chopped, red-chilli powder and the coconut. Fry for a while and then blend it into a smooth paste, adding salt to taste. For each serving of the chat, Powder some vada and puris and add one portion of the boiled peas to it. Add 3-4 tbsps of the pani,2-3 tsp of the hot Chutney and 4-5 tsp of the sweet Chutney. Mix well. Sprinkle some red-chilli powder and chat masala on top, garnish with grated carrot and minced onion. Eat immediately or it will turn soggy.