As a side note, when i make a curry of any description i usually chop up my chicken and simmer it for 20-25 mins in plain salted water, then when added to the curry for 5 mins at the end its nice and soft and cooked through.
When cooking any chicken, either in the oven roasted of stir-fried, boiled in a soup, stew or curry, its best to cut a piece at its thickest and check its cooked through before serving. Pork also.