Early trends show the Bharatiya Janata Party (BJP) -led alliance is leading in just under 300 seats, while opposition parties are ahead in about 200.
Prime Minister Narendra Modi is eyeing a rare third consecutive term for himself and the BJP.
Early results show the Congress party along with other opposition parties doing better than expected.
A party or alliance that wins more than 272 seats in the 543-member parliament can form the government.
The world’s biggest election was held in seven phases over six weeks with almost a billion people registered to vote.
More than two dozen opposition parties that joined to take on Mr Modi and the BJP are hoping to prove exit polls wrong.
(Excerpts : BBC)