Sri Hanuman Ji

The emblem of Hanuman on the flag of Arjuna is another sign of victory because Hanuman cooperated with Lord Rama in the battle between Rama and Ravana, and Lord Rama emerged victorious. Now both Rama and Hanuman were present on the chariot of Arjuna to help him. Lord Krsna is Rama Himself, and wherever Lord Rama is, His eternal servitor Hanuman and His eternal consort Sita, the goddess of fortune, are present. Therefore, Arjuna had no cause to fear any enemies whatsoever.

Hanuman ji has been respectfully worshiped for many hundreds and thousands of years. Lord Sri Caitanya Mahaprabhu set the example in showing how one should offer respects to Hanuman ji.
In Vrndavan Sri Caitanya Mahaprabhu visited the local temple, where there was a deity of Hanuman. After offering him obeisances, the Lord departed for South India.