Wash and soak moong daal/lentil in water for 10 minutes.
Wash,peel and chop lauki/bottle gourd in medium size pieces.
Heat ghee/oil in a pressure cooker,then add cumin seeds.
As soon as seeds start crackling add all the ingredients of tempering.
Stir fry till cumin become golden in colour.
Now add soaked daal,chopped lauki, salt,turmeric and chili powder.
Stir for few seconds and then add water and pressure cook for 3-4 whistles on medium heat or cook till become soft.
Open the cooker when cool down completely and add ginger and a pinch of sugar(can add some hot water to adjust the consistency according to your preference)) and give it a boil.
Now remove the cooker from the flame and add lemon juice and chopped coriander in the curry
Serve with roti or any Indian bread.