kothmir chutney

For the coriander onion chutney:
4 green chilies, chopped
1/3 cup Spring onions, chopped
1cup bunch of fresh Coriander, chopped
1/3 cup mint leaves, chopped
2 tbsp Lemon juice
1 tsp Sugar
1 tsp mango powder
½ cup natural Yogurt
½ cup water
1 ½ tsp salt