The country’s overall oil sales clocked in at 1.39 million tonnes in May, the highest in nine months, showing a jump of 7 per cent year-on-year and 26pc month-on-month, led by an annual increase of 18pc in diesel sales. However, oil sales during the first 11 months (July-May) of the current fiscal year remained at 13.83m tonnes, down 9pc from the same period a year ago. Amid serious concerns