Heat oil in a cooker, add mustard seeds and let them splutter. Add jeera and methi seeds and fry till they are lightly browned.
Add onions and fry till they turn pinkish.
Add methi leaves and green chillies and fry for another minute.
Add dry spices and fry for one more minute.
Add rice, dal and water and close the cooker.
After one whistle, reduce the gas and let it cook for about 5 minutes or so. I will give you a tip here, never ever measure cooking times in number of whistles. Actually you should never let the cooker whistle apart from the first one. Since you are actually losing some steam when it whistles lowering the pressure inside and elongating the cooking time. Always measure the cooking times in minutes and then release the steam naturally.
Serve hot with a dollop of ghee, salad, papad and pickle.