Wash and soak the lobia | karamani and the urad dal separately over night or for 7-8 hours. Grind this into a fine paste along with red chilies, asafoetida, salt and curry leaves. Grind karamani and urad dal separately. Mix well now. Add Mustard seeds to this and mix well. The batter should be thick as the Vadai batter. Do not add too much water while grinding. Add very little water.
In a clean,dry plastic sheet make small small balls of the batter. Keep in the open terrace or in the place where you get abundant sun light. The second day you just flip the vadams. Let this dry in the bright sun light till they become completely dried up. It took 3 days for it to completely dry. After the secon day you can even transfer it to a wide plate and dry it too.
Once dried completely, store it in a airtight container. You can store this for an year if handled with dry hands.
Note:
The reason for soaking and grinding the karamani and urad dal separately is , the karamani gets grind fastly. where as the urad dal takes little time to grind.
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