Janardhana is one among the numerous forms of Vishnu. In this form, Srihari Vishnu destroys demons like Madhu and Kaitabha.
In the Janardhana form, Vishnu has four hands. He holds Sudarshana Chakra (discus) and padma (lotus flower) in his right hands. In his left hands, he holds Shankh (conch) and gada (mace).
He takes the form to destroy various demons living in water. These demons cause harm to demigods, saints and living beings.
Worship of this form of Srihari Vishnu frees living beings from rebirth. He blesses his true devotees with liberation and frees them from worldly sufferings.
In the Gayatri Mantra, he is the governing deity of the letter ‘pra.’
He is also the lord of the southwest cornor.
As this form is associated with water, He helps in curing diseases related to salt.