Mr Modi's Bharatiya Janata Party (BJP) was leading in 116 out of 182 seats, against 61 seats for the Congress party, which heads India's national government, according to the Election Commission website.
Based on the data, Indian television channels said Mr Modi looked set to win. The BJP won 117 seats in 2007 and analysts say Mr Modi needs a convincing victory to present himself as the presumptive BJP candidate for prime minister in national elections due by 2014.
Modi set for Gujarat win, may boost PM ambitions
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