What is the story of the mysterious Tanga that appeared for Ramgir Buwa?

Chapter 33 recounts a curious incident that left Nana's heart filled with wonder at Baba's affection. Nana was surprised when Ramgir Buwa arrived, as he asked where the 'Tangawala' (carriage driver) was. Nana was confused because he had not sent a Tanga and was not even aware Buwa was coming. Buwa then told the complete story of how a Tanga had mysteriously appeared for him. The text concludes by reflecting on the mysterious origins of the Tanga and its driver, attributing the event to the 'motherly Sai,' who is described as a skilled actor that comes running to help devotees in times of crisis.