Who was the dasi of Kans the mama of Lord Krishna?

The dasi of Kans, the maternal uncle of Lord Krishna, was named Putana. She was a demoness sent by Kans to kill Krishna as an infant. Disguised as a nurse, she attempted to poison him but was ultimately defeated when Krishna suckled her life away. Putana is often depicted as a tragic figure in Krishna's narrative, representing the conflict between good and evil.