The Constitution of the Sri Lanka Sinha Regiment Ex-Servicemen Association serves as the governing framework of the Association, outlining its objectives, membership requirements, organizational structure, powers and responsibilities of office bearers, meeting procedures, financial management, and regulations. It ensures transparency, accountability, and the effective administration of the Association while promoting unity, welfare, and the shared interests of all members. Members are encouraged to review the Constitution to better understand the principles, values, and operational guidelines that guide the Association's activities and decision-making processes.