150 g - chena (yam), gently peel off the outer skin, wash thoroughly and cut it into 1/4 - inch cubes
3/4 cup - water (Indian standard measuring cup of 1cup / 200 ml / 8 oz capacity)
1/2 tsp - salt (or to taste)
In a pressure boil chena cubes with water (just to cover chena) and salt to taste. Bring to pressure cooker on high heat for 2 quick whistles. Allow the cooker to cool naturally. Open the cooker and check the texture of chena. If it's cooked well, that's fine. Or cook again for another 2 quick whistles (adjust water too).