Masalapuri Chat

2 cup peas, soaked overnight 1 potato, roughly chopped 2 cups water salt to taste ½ tsp turmeric / haldi for masala paste 3 tsp oil ½ onion chopped 2 green chili 2 cloves garlic / lasun chopped 1 inch ginger chopped 1 large tomato chopped other ingredients 2 cups water, add as required 1 tsp kashmiri red chili powder ½ tsp turmeric 2 tsp pav bhaji masala powder ¾ tsp aamchur powder / dry mango powder ½ tsp garam masala powder salt to taste for plate serving 10-15 flat puri / papdi 2 tbsp sweet tamarind chutney 2 tbsp onion, finely chopped 1 tsp coriander leaves, finely chopped 2 tbsp tomato, finely chopped pinch of kashmiri red chili powder fistful of sev