Green Yogurt Curry with Summer Squash

Name: Green Yogurt Curry with Summer Squash
Ingredients: 1½ pounds summer squash (yellow or green zucchini), cut ½ inch thick rounds with large pieces cut again in half; 3 cups yogurt (or combo yogurt and buttermilk); Small bunch cilantro leaves; ½ cup frozen fresh grated coconut, thawed; 2 tablespoons chana dal; 2-3 green chilis; ½ teaspoon cumin seed; ½ teaspoon black mustard seeds; ¼ teaspoon turmeric powder; Salt to taste; 2 teaspoons vegetable oil; Pinch of hing/asafetida; 1 dried red chili; ½ teaspoon cumin seeds; ½ teaspoon mustard seeds; 4 fresh curry leaves