Drṣad and upala
By Swami Harshananda
Vedic sacrifice is an age old tradition. Purodāśas or cakes made by baking pounded grains is one of the several materials used in the sacrifice for oblation into the duly consecrated fire. The two mill-stones used for pounding the grains are called dṛṣad and upala.
Dṛṣad is the lower stone, flat in shape whereas Upala is the upper cylindrical stone.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore