- In a pan, add ghee. Add cumins seeds. Let it bloom well. 
- Then add dried red chillies and curry leaves. 
- Then add onons, ginger, garlic and tomatoes all at once.  
- Once the onion comes on top of the oil, add red chilli powder, turmeric, coriander and kasuri methi powder. Cook for a minute or so. 
- Take out 2 tbsps of tadka and reserve it for using while garnishing in the end. 
- To the remaining tadka, pour the cooked daal. Mix well. Cook for a minute. 
- Add coriander leaves and butter. Mix well. Add more water if the gravy is too thick. 
- Serve.