Soak them in enough water for 5-6 hours.

Drain all the water and grind it to smooth paste little water at a time.

Now pour it in a bowl add salt mix it and leave it for fermentation for about 8-9 hours.

You will see the batter has doubled up after the fermentation.

Now we make masala Aloo heat a pan add oil. Then mustard seed,turmeric powder, mix well. Add onion potato, chilli powder, salt, chaat masala mix well. Keep a side.

Now take a non-stick dosa pan. Pour 2 scoop of batter and gently spread the batter from the center to outward directions.

Apply masala Aloo and fold.

Now we are making sambhar heat a pressure cooker put some oil in it add mustard seeds, cumin seed, curry leaves, onion in it after 2 mins add ginger garlic paste saute 5 minutes.now add red chilli powder, coriander powder, turmeric powder, and tamarind pulp and salt, after that add tomato cook for 2 min add pumpkin and tuvar daal and water as required now close it and take 5-6 whistle.