Petrol price on Wednesday crossed the Rs 100-a-litre mark after fuel prices were increased in line with firming international oil trends.

Petrol price was increased by 35 paise per litre and diesel by 23 paise a litre, according to a price notification of state-owned fuel retailers.

In Delhi, petrol now costs Rs 100.21 a litre and diesel is priced at Rs 89.53 per litre.

Delhi is the last of the metro cities to see petrol rising above the Rs 100-a-litre mark. Mumbai, Chennai, Hyderabad and Pune already have prices above that mark.

Calcutta also saw petrol prices climbing over Rs 100 per litre on Wednesday.

Congress leader Rahul Gandhi hit out at the government as petrol prices crossed the Rs 100-a-litre mark in Delhi, charging that the Modi government runs on "tax extortion".

Petrol prices crossed the Rs 100-a-litre mark after fuel prices were increased in line with firming international oil trends.

"Your car may run on petrol or diesel, Modi government runs on tax extortion," Gandhi tweeted in Hindi, using hashtag 'TaxExtortion'.