According to the Indian Standards (NBC), the number of water closets for male personnel in office buildings should be provided as 1 for every 25 persons or part thereof. This ensures adequate sanitation facilities for employees in the workplace.
This rule is part of building design and construction standards to promote health and hygiene in commercial spaces. It considers the comfort and convenience of the personnel working in the office.
Providing the required number of water closets helps prevent overcrowding in washrooms and ensures that hygiene standards are met.