600gm. yoghurt, 5gm cumin (jeera) seeds, 5gm coriander seeds, 2.5 gm black peppercorns, 30gm cucumber, chopped, 5gm. green chili, finely chopped, 5gm. mint, chopped, 30gm. onions, chopped, 30 gm. tomatoes, chopped, 30 gm. chili powder to sprinkle --salt to taste--