Kathmandu, July 1: The Nepal Oil Corporation (NOC) has increased the price of petroleum products effective from early morning today. The NOC has clarified that following the new tariff sent by the Indian Oil Corporation (IOC) the price has been inclined. The NOC, however, has not hiked the price of the LPG and aviation fuel. The new petrol price in the Kathmandu Valley has been fixed at 167 rupees per litre and the diesel and kerosene price at 157 rupees per litre. People’s News Monitoring Service.