The legend goes that Kanaka Dasa was born in lower caste. The legend goes that Kanaka Dasa was born in lower caste, and was a warrior. Defeat in a war made him take up the path of devotion. He adopted Vaishnavism, i.e. became a devotee of Lord Vishnu.
Being a devotee of Vishnu, he went to Udupi to have darshan of Lord Krishna. Being from lower caste he was not allowed to enter the temple. Dejected, he sat behind the temple and sang praises of the lord and prayed lord for a glimpse.
Lord Krishna was facing East. Lord moved by his prayers is said to have turned toward the back of the temple, i.e West and the temple wall collapsed to form a window, so that Kanaka Dasa could view the Lord. Faith broke the wall!!
Even to this day, Lord Krishna faces the West and he can be seen through the window called "Kanakan Kindi" meaning "Kanaka's window".