Chainsoo is a preparation of Urad daal (black gram). Due to the high protein content of this daal it is said to be difficult to digest but that gets nullified by the roasting of the daal. In the far reaches of the Garhwal regions where electricity has not reached, this daal is probably still made the old way by grinding on a Silbatta, which resulted in the ground daal being damp. After the advent of the dry grinder it is possible to grind this daal without the addition of water and results in a much more flavorful version.