On Hanuman Jayanti followers and devotees of Lord Hanuman flock to temples dedicated to him across the country seeking his protection and blessings. The devouts offer special prayers and chant mantras such as Hanuman Chalisa and Sundar Kaand. Others observe a day long fast to commemorate Hanuman Jayanti. It is said that Lord Hanuman was known to be of the colour of vermillion, which is why he is likened in an orange avatar and offered boondi, besanor motichoor laddoo.
It is believed that divine and celestial bodies came down from to the Earth and modified physical forms of creatures that seemed like apes so animals could be used as vehicles for the divine beings.
In the Southern states like Telangana and Andhra Pradesh devotees observe 41 days of Deeksha on Chaitra Purnima that lasts till the Hanuman Jayanthi day. In Tamil Nadu, Hanuman Jayanthi is celebrated on the Margazhi month of Moola nakshathra. Lord Hanuman was born on moola nakshathra in the same month. In Karnataka, the festival is observed on Shukla Paksha Trayodashi during Margashirsha month which is known as Hanuman Vratam.