In a small mixing bowl, stir yogurt and chickpea flour together. Mix well to free from any lumps
Heat oil in a pan and add mustard seeds.
After mustard seeds start popping, add cumin seeds.
When cumin seeds start sizzling, add grated ginger and saute for few seconds.
Then add yogurt and chickpea flour mixture.
Mix well and add turmeric powder, coriander powder, cumin powder, and red chili powder.
Mix well and cook for 3-4 minutes or until mixture thickens.
Add corn, water, and salt to taste. Stir well.
Bring the mixture to a boil, turn the heat on medium-low and cover the lid.
Continue cooking for 15-20 minutes or until corn kernels are cooked. Stir the curry in between to prevent it from sticking to the bottom of the pan.
In a small saucepan, heat ghee or butter over low heat and add dry red chili and Garam Masala.
Stir and cook for about 30 seconds.
Pour this tempering over the corn curry, mix well.
Stir in chopped coriander leaves, and turn off the heat.
Take the curry in a serving bowl and serve hot.