A legally sustainable POSH inquiry demands strict adherence to procedural fairness. The Sexual Harassment of Women at Workplace (Prevention, Prohibition and Redressal) Act, 2013 prescribes timelines and structural safeguards to ensure due process for both complainant and respondent. The inquiry process begins with receipt of a written complaint, followed by sharing a copy with the respondent for response. Both parties must be given reasonable opportunity to present evidence and witnesses. Denial of opportunity or procedural haste can undermine the validity of findings. Documentation is central to sustainability. Minutes of hearings, witness statements, evidence records, and reasoned analysis must be carefully maintained. Courts typically examine whether the Internal Committee followed principles of natural justice rather than re-evaluating factual conclusions. Bias whether actual or perceived is a frequent ground for challenge. IC members must recuse themselves where conflict exists. ...