Having stated that, allow me to make a couple of educated guesses. The abundance of tomatoes reminds me of the Portuguese chicken in tomato sauce, Frango com Molho de Tomate. And didn’t the Sephardic Jews relocate to Goa, where the food is sour and vinegar is liberally used? And as they encountered Indian spices along the road, it was only inevitable that some of them would make their way into the chicken in tomato sauce, culminating in Chicken Chitarnee as we know it today.
Source: https://www.crazycooks.in/indian-jewish-chicken-chitranee-how-to-make-jewish-chicken-curry-recipe/
