The office of the Principal Director of Audit, North Western Railway is responsible for audit of various units of North Western Railway viz. Headquarters, Divisions, Traffic, Construction, Workshop, Stores and branch offices. The Principal Director of Audit(PDA) is in overall Administrative and supervisory charge of the office. PDA is assisted by the Director and 17 Sr. Audit Officers. PDA is directly responsible to the Deputy Comptroller and Auditor General of India (Railways) for the audit of receipt & expenditure relating to North Western Railway including Construction Organisation of N.W. Railway. The Headquarter office is located at Jaipur Rajasthan from where the Principal Director of Audit directs, monitors and controls the activities of field units situated at over the N. W. Railway. The Principal Director of Audit has direct supervisory charge of Report & Internal Test Audit (ITA) section of this office.