This is an interesting question combining two different topics. Chapter 36 does indeed mention that Sai Baba, described as the swan in the lake of the Supreme, is indifferent to the 'So-ham' (I am He) attitude. This highlights his divine humility and focus on service. However, the source text for this chapter makes no mention of a person named Cholkar, and therefore draws no connection between this philosophical point and any interactions with him. Instead, after discussing Sai's qualities, Chapter 36 introduces an entirely different story concerning two gentlemen who came from Goa to receive his darshan.
How does Chapter 36 connect Sai Baba's indifference to the 'So-ham' attitude with his interactions with Cholkar?
π Chapter 36