To cook the rice perfectly, bring the water to a boil, add rice. When the water starts boiling again, cook for another 5 minutes. This absolutely depends upon the quality of the rice. When you press the rice between your fingers, it shouldn’t feel like a grain or feel cooked. It is somewhere in between. It is half grainy.
When you cook on a tawa, the bottom doesn’t get burnt.
Some people cover the lid edges with chapati dough to conceal the steam. Lazy me, opt for foil instead.