Can you tell me about the time a devotee named Karnik met a saint in Nashik?

Certainly. According to Chapter 33, a devotee named Karnik went to Nashik and visited the temple of Kala Rama for Darshan. There, he had an unexpected encounter with the saint Narsing Maharaj. While surrounded by other devotees, the Maharaj suddenly got up, grabbed Karnik by the wrist, and demanded, "Give my Rupee." Although amazed, Karnik gave the Rupee with great joy, feeling as if Sai Baba himself was the one accepting it. The narrative uses this event to teach that one should maintain and act upon the initial good impulses that arise in the mind, as nurturing these inclinations is beneficial.