Kathmandu, Dec 31: Nepal Oil Corporation has reduced the price of petrol, diesel and aviation fuel.With effect from Thursday morning, the price of petrol has been reduced by Rs 4 per litre, diesel and kerosene by Rs 5 per litre and aviation fuel by Rs 6 per litre for domestic aviation and by USD 42 for international flights to Kathmandu.The new price will be effective from Thursday morning. The corporation has stated that even though the purchase price of LP gas has increased, the retail selling price of cooking gas has been kept unchanged keeping in mind the interests of...