Vodafone's annual loss of 6.1bn euros (£5.2bn) is largely down to the sliding value of its Indian business, with the operator writing down the value of its Indian unit by 3.7bn euros following a price war.
Matthew Kendall, Telecoms Analyst at The Economist Intelligence Unit, observed: "Vodafone's results are a measure of just how cut-throat the Indian mobile market is at the moment.
"The low-price offers from new market entrant Reliance Jio have completely shaken the market and operators are struggling to compete."
In the UK last year Vodafone was hit by a £4.6m fine for misselling and poor handling of complaints.
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