a matter or event, especially of a complex or challenging nature

an illicit relationship or romantic involvement

मामला

English Usage: The affair was more complicated than he initially thought.

Hindi Usage: मामला उसकी प्रारंभिक सोच से ज्यादा जटिल था।

a professional or public event, often a problematic one

घटना

English Usage: The affair became a scandal that shook the community.

Hindi Usage: घटना ने समुदाय को हिला देने वाला एक घोटाला बन गया।