State-run Hindustan Petroleum Corporation Ltd (HPCL) has intensified quality surveillance of ethanol-blended petrol across its nationwide retail network, conducting 3,651 inspections over the past two weeks as part of its efforts to ensure fuel quality and compliance.The oil marketing company said it carried out 2,173 surprise inspections at retail outlets between July 7 and July 13 to verify ethanol blending compliance. This was in addition to 1,385 regular field inspections conducted between July 3 and July 13 under its routine quality monitoring programme.To further strengthen oversight, HPCL's Quality Assurance (Anti-Adulteration) Cell undertook 93 surprise inspections, while 49 fuel samples were tested through the company's mobile laboratory facilities.The company said the surveillance exercise found no instances of adulteration, contamination, critical irregularities or quality compliance lapses across its retail network during the reporting period.HPCL said it follows a multi-layer quality assurance framework comprising regular field inspections, surprise checks, laboratory testing and continuous monitoring to ensure fuels supplied through its retail outlets meet prescribed quality standards.The company said the measures are aimed at reinforcing its commitment to providing customers with safe, reliable and high-quality fuels across the country.