Cochin Jew Chicken recipe

I collect traditional recipes. It is a passion. This is how the jews in Cochin cooked their chicken in the 70's. BTW does anyone know where the youngest son of the Koder family is?

I chicken skinned and cut in to small pieces
2 onion chopped fine
1 tbl spn each ginger and garlic paste
10 fresh green chill. cut 5 in to rings and the other half split in to two
2 small tomatoes chopped
1/2 tsp turmeric
1 tsp chilli powder
walnut size tamarind soaked in 3 tbl spn hot water
1 1/2 tspn sugar
salt to taste
Curry leaves..one sprig
oil 1 tbl spn

Heat oil, fry the onion, ginger and garlic and the chilli cut in to rings, when the onion is slightly browned add the curry leaves and tomatoes, saute for 3 mints, add the turmeric and chilli powder, fry for another minute, add the chicken, saute for 5 mints. add a cup of water and the salt, cover and cook till the chicken is almost done. Now add the tamarind pulp and the chilli split in to half and the sugar. Turn the heat to medium and cook uncovered for another 10 mints..taking care that you stir often so the chicken isn't burned.

I serve this curry with plain rice.