Add tamarind in boiling water, and let it sit for 15-20 minutes. Remove the pulp from tamarind and strain the liquid.
Add Gram Flour and Yogurt in a bowl. And mix till batter turns smooth.
Add water to the bowl and mix everything well.
Add oil in thick bottomed pan. Add mustard seeds. When they start to splutter, add curry leaves to it. And then add tamarind water mixture to the pan.
Now set the temperature at medium-low, and add Kadhi batter (gram flour & yogurt) to the pan. Add 4-5 cups of water to the pan.
Now add fenugreek seeds, red chili powder, garam masala powder, cumin powder, and salt to the pan.
Stir in between and cook for 15- 20 minutes.
Now add pakodas in the pan, and close the lid. Let it rest for 10 minutes.