Cairn India is planning to invest $ 3 billion (approx Rs 16,500 crore) over the next three years in Rajasthan oil fields.

The company intends to find more oil and to raise output from its flagship Rajasthan oil fields. Cairn India will raise crude oil production from Rajasthan fields by 23 per cent to 215,000 barrels per day by March 2014.

Currently, it has production facility in five fields -- Mangala, Bhagyam, Aishwariya, Raageshwari and Saraswati.

The Mangala field, is producing at plateau rates of 150,000 barrels per day. Aishwariya commenced production in March 2013 and is expected to produce 10,000 barrels per day over the next few months. While, Bhagyam, is expected to ramp upto the approved rate of 40,000 barrels per day by the second half of current fiscal year.

Cairn is planning to drill more than 450 wells in Rajasthan block over a three year period -- an increase from the current rate of 25 wells drilled in FY2013.