Firstly wash and soak dal for at least 1 hour
Discard the water and add 1:3 ratio water, a pinch of turmeric powder, and a drop of oil
Pressure cook for 3 whistles and let the pressure releases naturally
In a wide pan add oil and when the oil is hot add mustard seeds, fenugreek seeds, and let it splutter
Add onions and saute for 2 minutes or till onions turns translucent
Furthermore add carrots, drumstick, okra and saute for a minute
Add required salt and saute for 2 minutes
Pour water and give a quick mix
Furthermore add tamarind paste, turmeric powder and mix well
Boil for 10 minutes, mix well in between
Add 1 cup of water and boil for 5 more minutes
Check if the vegetables are fork-tender also tamarind raw smell goes off then add mashed cooked dal
Furthermore add curry leaves, coriander leaves, salt if required, hing and little jaggery, mix well, and cook for 5 minutes
Add water and adjust the sambhar according to the consistency you desire
Lastly, add a dollop of ghee and turn off the stove
If sambhar thickness over time add little hot water and boil for 3 minutes and serve