The research analyzes the effect of Psychological Contract Breach (PCB) on Organization Citizenship Behavior (OCB) with the help of Emotional Exhaustion (EE) taken as a mediating variable. Humour Skills has been taken as the moderator between the relationship of PCB with EE, and EE with OCB. The Snowball sampling method has been opted in this research. The results highlighted that PCB effected OCB both directly and indirectly through EE, which has been found to be partially mediating the relationship. Through moderation, the impact of Humor Skills on the association between PCB and EE has not been found. This effect might not have been established as several local, and multi-national companies in Pakistan are downsizing due to the adverse impact of COVID-19 on the global economy. Hence, it has become increasingly difficult for employees to deal with the extra pressure on the job using humour skills. However, humour skills were acting as a moderator, weakening the relationship between EE and employee's citizenship behaviour which tells us that humour skills help the employee counter the harmful effects of emotional exhaustion.

Key words: Psychological Contract Breach; Organizational Citizenship Behavior; Emotional Exhaustion; Humor Skills; COVID-19