1. Grind together green chillies ,ginger and garlic .Grind papaya separately .
2.Beat curds ,add ground ingredients and the chilli powder .Beat well .
3. Add salad oil and colouring and pass through a fine seive .Cut spare ribs into 10 cm .Piece lengthwise along the bone .
4.Apply lime and salt and set aside for 10 minutes .Then marinade in prepared batter for about 2 to 3 hours .
5. Grill slowly over charcol on a grind and turn occasionally to develop attractive colour and special flavour .