How do you separate adulterated urad dal from papaya seeds?

To separate adulterated urad dal from papaya seeds, you can use a simple water floatation method. Soak the urad dal in water; the lighter papaya seeds will float while the heavier urad dal will sink. Skim off the floating seeds, then drain and rinse the urad dal to remove any remaining impurities. This method helps efficiently separate the two substances based on their differing densities.