In Kushe Aunshi, hindus collect kush, a holy grass used while performing various holy rituals as Shraddha [holy rituals remembering the departed ancestors] and religious rituals.
There is a religious belief that keeping kush cut by the priests and anointed with sacred verses or mantras in the house brings wellbeing to the household.
The Hindu community regards kush, Tulashi (basil plant), peepal and shaligram (ammonite stone) as the symbols of Lord Bishnu.
Also known as the day of Gokarne Aunshi, the children feed their fathers with delicious food items including sweets, and show reverence. It is also called Father's Day.
As per the religious belief of 'pitridevo bhava' (respect to ancestors), the son and daughter receive blessing from their fathers, and those whose fathers are already dead go to any pilgrimage site and perform shraddha, the holy ritual. Doing this, it is believed that, their lineage will remain stable for ever.
Main pilgrimage sites to perform shraddha are Gokarna of Kathmandu, Betrawati of Rasuwa, and Bishnupaduka of Dharan.