have you ever tried urad dal and chana dal vada...it will be off different taste..like both the dalls taste will reflect.
1. Urad dall-1/4 cup
2.Chana dall-1 cup
4.oil to fry
Soak both the dalls togeather for 1 hour. after that add red chilli,salt and sprinkle some water and grind it well. now add chopped corriander leaves and curry leaves to it and mix it well with the grinded dough. now take a small ball of the dough and fry it heated oil.