On Wednesday (September 27), the petrol and diesel prices were still unchanged in several parts of the country as the Indian oil companies have kept the rates constant. However, minor fluctuations have been observed from state to state in India.As per the latest rates, petrol in Delhi is being sold Rs 96.72 a litre while diesel is being sold at Rs 89.62 a litre. Whereas in Mumbai, petrol is available at Rs 106.31 and diesel at Rs 94.27 per litre. While petrol in Kolkata is Rs 106.03 and diesel is Rs 92.76 per litre. On the other hand, petrol is being sold at Rs 102.63 and diesel at Rs 94.24 per litre in Chennai.Meanwhile, the oil prices have been constant since May 21, 2021, and are announced every day at 6 am. However, sometimes it fluctuates from state to state owing to the varied Value Added Tax (VAT), freight charges, local taxes, etc.Moreover, in 2021, the union government reduced the central excise duty on petrol and diesel by Rs 8 per litre and Rs 6 per litre respectively.