Introduction:
In the story "Patol Babu, Film Star," Patol Babu earns himself a nonentity due to various reasons.

Missed Opportunities:
Patol Babu, a middle-aged man, used to be passionate about acting in his youth. However, he missed out on opportunities to pursue his passion due to family responsibilities and financial constraints. This led to him becoming a nonentity in the acting world.

Lack of Recognition:
Despite having a background in acting, Patol Babu did not receive recognition or fame in the industry. He was often overlooked and relegated to insignificant roles or cameo appearances, which further contributed to his nonentity status.

Low Self-esteem:
Over the years, Patol Babu's self-esteem took a hit as he faced rejection and disappointment in his acting career. This resulted in him doubting his abilities and settling for mediocrity, reinforcing his nonentity status.

Struggle for Identity:
Patol Babu's struggle for identity and significance is evident throughout the story. He longs for a chance to prove himself and leave a mark in the film industry, but circumstances and societal expectations have limited his opportunities.

Redemption Through Passion:
Despite his nonentity status, Patol Babu finds redemption through his passion for acting. When given a small role in a film, he approaches it with dedication and enthusiasm, delivering a memorable performance that earns him respect and recognition among his peers.

In conclusion, Patol Babu earns himself a nonentity due to missed opportunities, lack of recognition, low self-esteem, and a struggle for identity. However, his passion for acting ultimately allows him to break free from his nonentity status and leave a lasting impact in the film industry.