Firstly take a cooker and add oil and onions...when onions become translucent or goldnish brown then add tomato and then add spices you liked and mix it and add 1 tsp water and cook it

Then add washed dal and water approximately 1 and 1/2 katori.....cover the lid and wait for 1 whistle and turn the gas on low flame and cook it for 10-12 minutes...