Petrol price was on Sunday hiked by a steep Rs 1.55 a litre,the fourth increase in six weeks,as falling rupee made oil imports costlier.
Oil marketing companies said the revision would be effective from midnight.
Actual increase will be higher and will vary with each city depending on local taxes. This is the fourth increase in rates since June.
Oil firms had on June 1 raised prices by 75 paise,excluding tax,and followed it with a Rs 2 per litre increase on June 16 and a Rs 1.82 on June 29.
The revision in prices,as per the practice of changing rates in line with cost every fortnight,was due on Tuesday July 16 but will be raised a day earlier. The revision in diesel price is due at the end of the month.