Can you describe the author's personal anecdote about Pir Maulana from Chapter 21?

Certainly. In Chapter 21, the author recounts a personal story to demonstrate how ill-luck can prevent one from meeting a holy person. While he was the Magistrate in Bandra, there was a famous Siddha named Pir Maulana who was revered by people of all faiths. The Siddha's servant, Inus, persistently invited the author to come for his 'darshan' or vision. However, the author admits that he let his pride get in the way, thinking, "Should I be pressured by others and lose my own prestige?" He never went to see the Saint, and as he reflects in Chapter 21, he attributes this failure to his own misfortune at the time, stating, "One fears one's own shadow when ill-luck stands in the way."