To clean and chop yam - Before you start working - apply oil on your hands and then scrub the yam under running water and then make big slices or strips. Then peel the yam skin carefully with a strong and sharp knife. Don't forget to grease your hands otherwise they may get itchy due to the yam's skin.
Cut into big pieces, and wash them thoroughly. Boil till done, or pressure cook with 2 glasses of water for 2 whistles on medium heat.
Drain and keep aside, when cooled completely chop and make medium size pieces.
Heat oil or ghee in a pan and add cumin and carom seeds. When the seeds turn golden in color then add asafoetida and clove powder.
Add turmeric and add the boiled yam pieces.
Stir and then add all the dry spices, mix and then add whipped yogurt. Mix gently.
Let it cook on slow heat for about 5 minutes - stir 2,3 times in between.
Add chopped fresh coriander and serve .
Serving suggestions-serve with any Indian bread or as a side dish.