PURPORT

Paritranaya sadhunam vinasaya ca duskrtam. Krsna's daily business here in this material world was to kill the duskrtis. This did not hamper His daily affairs, for it was routine work. While He tended the calves on the bank of the River Yamuna, two or three incidents took place every day, and although these were serious, killing the demons one after another appeared to be His daily routine work.