The Tata Indigo 1.4 Dicor is the most fuel-efficient diesel car in India offering a mileage of 23.57 kmpl. The 10 most fuel-efficient diesel cars are here: http://www.carazoo.com/article/2104 201001/The-Top-10-Fuel-Efficient-Di esel-Cars-in-India
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4:50 PM on September 17, 2010