Petrol prices in Mumbai surpassed Rs 99 per litre on Tuesday, as oil companies boosted petrol and diesel prices in response to a rise in worldwide oil costs. According to a price notification from state-owned fuel retailers, the price of petrol has increased by 27 paise per litre and the price of diesel has climbed by 29 paise per litre. The increase, which was the tenth this month, pushed gasoline and diesel prices to new highs across the country.