charusherri nambuthiri was lived on 15th century. He lived on the northern side of kerala with kolothiri.He was a gust of kolothiri .

The situvation to write the pome or krishnagatha was one day

was playing chathurangam [chess] with kolothiri .Kolothiri

was going fail in that .The play was seeing by his wife rani.

she was making baby to sleep .She gave a tip to kolothiri

for winning as a song for baby to sleep 'thu thu thu thu thu thu

thu thu thu aaleuthu' it means to push the soldier forwards.

By doing this kolothiri won the play and order cherusherri to make a pome on this tone. The tone used by rani.this was the situvation