Shri Hanuman is regarded as the God of power, strength and knowledge. He is an ardent devotee ‘param bhakti’ of lord Rama in the Sanskrit epic - Ramayana. Folk tales says that he is the incarnation of Lord Shiva. Hanuman Ji is known as ‘KESERI NANDAN’ and ‘ANJANEYA’. Hanuman Chalisa is a devotional song / hindi poem by Tulsidas in praise of Lord Hanuman. It is a popular audio aarti collection in hindi for hindus and is recited on Tuesdays for Lord Hanuman aarti bhajan. This poetry for jai hanuman aarti and bhajan is called hanuman chalisa as it contains forty verses in the aarti songs. The names by which he was known are detailed in Hanuman Chalisa.