Heat the oil in a non-stick pan. Add the cumin seeds, mustard seeds, curry leaves, asafoetida, chopped chillies, ginger, garlic. Saute for a few seconds.
Add the finely chopped spring onions and a pinch of salt. Saute for 1-2 minutes. These onions cook in no time at all.
Meanwhile, make a thin paste of the gram flour in 2 cups water with a pinch of turmeric powder and salt to taste. Once the spring onions are sauted, pour the gram flour paste into the pan and keep stirring constantly on a medium flame. In 5-6 minutes the gram flour will get cooked as the curry thickens.
Taste and check if gram flour is cooked. (It shouldn''t stick to the tongue ) Remove from flame into a serving bowl. Serve hot with Phulkas / Chapatis.