Hanuman Jayanti is a Hindu religious festival that celebrates the birth of Lord Sri Hanuman, who is immensely venerated throughout India and Nepal. This festival is celebrated on different days in different parts of India. In most states of India, the festival is observed either in Chaitra (usually on the day of Chaitra Pournimaa) or in Vaishakha, while in a few states like Kerala and Tamil Nadu, it is celebrated in Dhanu (called Margazhi in Tamil).
On this auspicious day, devotees of Lord Hanuman celebrate him and seek his protection and blessings. They flock to temples to worship him and present religious offerings. In return, The devotees receive Prasad by the temple priests as sweets, flowers, coconuts, tilak, sacred ash (udi) and Ganga jal (holy water). People also celebrate him on this day by reciting various devotional hyms and prayers like the Hanuman Chalisa and reading holy scriptures like the Ramayana and Mahabharata.
Hanuman Janam-Utsav is an important festival of the Hindus. Lord Hanuman is an ardent devotee of Lord Sri Rama and is widely known for his unflinching devotion to Sri Rama. Hanuman is the symbol of strength and energy. He is said to be able to assume any form at will, wield the gada (including many celestial weapons), move mountains, dart through the air, seize the clouds and equally rival Garuda in the swiftness of flight.
Lord Hanuman is worshipped as a deity with the ability to attain victory against evil and provide protection.