Take Imli (Tamarind) and dip in hot water to make imli pulp
Wash the Arhar/ Tur Dal (Pigeon pea Lentil)
Soak it for 5-10 minutes in water
Now in the meanwhile check the imli, if it has softened then mash it and strain it with the help of a sieve to get the imli pulp.
Keep aside
Transfer the soaked dal in a pressure cooker for boiling
Add salt, turmeric, Sambar masala and water
Cook it in pressure cooker till 4-5 whistle on medium flame
In the meanwhile, chop and boil the vegetables - Tomato and Pumpkin and steam the drum sticks
Open the pressure cooker when the pressure settles down. Check the deal. It should be completely cooked.
Mash the Dal with wooden or wired whisk
Now add imli pulp and check the consistency
It is as per your requirement
Then add vegetables except drum sticks
Add curry leaves.
Mix it well and boil for 10-12 minutes
Add Gud in the sambar and keep it on medium flame.
Now take oil in a frying pan for tempering
When the oil gets heated, add hing and mustard seeds
Add red chilli and wait to crackle
Add drum sticks and curry leaves when mustard seed crackles. Saute the drumsticks
Add red chilli powder
Switch off the flame of gas stove of Sambar and Immediately add this tempering in the Sambar
Garnish it with Coconut and Coriander