Voters showing their voter ID card before casting their vote for assembly election at a polling station on October 15, 2014 in Nagpur,

Prime Minister Narendra Modi's Hindu nationalist party made big gains in two Indian state elections, partial results showed on Sunday, in an endorsement that will encourage him to step up the pace of economic reforms.

Modi's Bharatiya Janata Party (BJP) led in 113 of 288 seats in Maharashtra, NDTV news said. That more than doubled its seat count in the western state that is home to Mumbai, the financial capital, but fell short of an outright majority.