The beginning of Hanuman is commemorated through Hanuman Jayanthi within the month of Chaitra (March or April). During this festival, devotees flock to temples dedicated to Hanuman from the early several hours in the morning, wherever officiating priests bathe idols on the deity and provide them special prayers. The https://www.youtube.com/watch?v=6cAOQp6Twlc&t=7s