Lemon or lime. These seem to be interchangeable. Since the lime grows much more readily than the lemon in India this is more likely to be a lime.
Wheat flour. Fine wholemeal flour used in most Indian breads.
Butter
Fish
Honey
Tuesday
Refined wheat flour
Fine wheat flour
Cornflour (US: corn starch). Finely powdered maize kernels. It is an excellent thickening agent.