Gather fresh colocasia leaves, rice flour, gram flour, tamarind, jaggery, spices, and oil
Wash and dry the leaves thoroughly
Prepare the batter by mixing rice flour, gram flour, tamarind paste, jaggery, chili powder, turmeric, salt, and spices
Make a smooth, thick paste
Place one leaf with the shiny side down
Trim the thick stem if needed
Spread a thin layer of batter over the leaf
Place another leaf on top with the shiny side down
Spread batter again
Repeat with more leaves and batter to form a stack
Fold the sides inward
Roll the stacked leaves tightly into a log
Steam the roll until fully cooked
Let it cool completely
Slice into round pieces
Shallow fry or temper the slices if desired
Serve hot or at room temperature