For the pakoris, After soaking the green and black grams for 2 hours grind to a smooth paste. Add the remaining ingredients. Whip till the batter is smooth and of dropping consistency.
Heat the oil in a pan; carefully drop tablespoons of the batter into the hot oil. Fry till golden brown. Rmove with a slotted spoon and immerse the dumplings in salted water for 5-7 minutes, Repeat till the batter is used up.
Remove the soaked dumplings; squeeze out the excess water and arrange them in a bowl.
Mix the salt with the yoghurt and pour over the dumplings. Sprinkle the spices, tamarinf and green coriander.