Dr. Pu. Ti. Narasimhachar - is popuarly known as Pu ti na. His famous composition is gItarUpaka "Gokula nirgamana," from which the song "krishnana kolanina" was taken.

Mudra:

Compositions: 

1. krishnana kolalina -
   

Source: karnATik contributor Alamelu Iyengar. Anything written here is accurate/authentic to the best knowledge of the contributors.