PurposeThe paper is built upon the conceptual framework of ability, motivation and opportunity (AMO) to identify the effect of the high performance work system (HPWS) on the voice behaviour of the organisation.Design/methodology/approachThe human resource department of the steel plants was approached to facilitate the data collection. A standardised questionnaire was used to collect responses from 169 full-time employees working at different levels and departments in the steel plant in India. Partial least squares structural equation modeling (PLS-SEM) was used to validate and examine the model identifying the relationship of AMO enhancing practices with the voice behaviour in the organisation.FindingsAMO was found to affect voice behaviour in the organisation. The positive and significant effect of ability enhancement practices was examined on the acquiescent voice and the opportunity enhancing practices on the acquiescent and defensive voice in the organisation.Practical implicationsEven though the organisation has tried to improve the employee's ability through proper training and development efforts, the organisation still fails to develop confidence in the employee for giving the suggestion or opinions without hesitation. The research papers try to provide valuable suggestions to the human resource management (HRM) and other managers for improving the voice behaviour of the employees based on the current study that identifies the effect of AMO practices on the voice behaviour of the employees.Originality/valueFactors affecting voice behaviour are not yet extensively studied in the Indian context. The researcher examined the effect of HPWS, considering the AMO framework on the organisation's acquiescent voice, defensive voice, and prosocial voice behaviour.