A cross-sectional study on 200 nurses working in private hospitals in Punjab was done using the simple random approach. To collect the data, a standardised questionnaire based on prior research was used. The study used partial least square-structural equation models (PLS-SEM) to examine the data. According to the study's results, acquiescent, defensive and prosocial silence behaviour increased as perceived organisational support decreased and vice versa. In order to discourage silence behaviour and improve mental health, managers and decision-makers of hospitals can assess and address organisational and interpersonal challenges.