This absolutely delicious dish is a great favorite with my family. The okra is stuffed very simply with coriander, cumin, and lots of amchoor, a tart, green mango powder that is sold in most Indian grocery shops. If, for some reason, you cannot find it, leave it out. Instead, sprinkle about 2 tsp of lemon juice over the top of the okra just when you are ready to cover it for the final 5 minutes of cooking. Stuffed okra is very versatile and may be served with almost any meal.