Voting in India's marathon elections ended this evening, with exit polls giving the ruling Congress party and its allies a slight edge over the opposition bloc led by the Hindu nationalist BJP.
However neither grouping is likely to get close to the 272 seats required to secure a parliamentary majority.
Exit polls have proved notoriously inaccurate in previous Indian elections, and the official result will only be announced by the Election Commission on Saturday.
Surveys carried by three news channels put the Congress-led coalition ahead, with CNN-IBN predicting a final tally of between 185 and 205 seats, against 165 to 185 seats for the alliance led by the Bharatiya Janata Party (BJP).
Saturday's count is expected to trigger a frantic round of political horse-trading as both alliances scrabble among a multitude of regional parties for the extra partners needed to form a viable government.
'Everything will depend on numbers,' Prime Minister Manmohan Singh acknowledged at a press briefing this week.
After polls closed in the fifth and final phase of the month-long ballot, the official turnout was calculated at 60% of the 714 million electorate - up slightly on 2004 figures.
Whatever formation emerges to govern India, observers say it will likely be an unwieldy coalition that will struggle to present a united front as India faces a sharp economic downturn and numerous foreign policy challenges.
'There is an absence of national leaders who are able to project the issues and enthuse people. There are no towering personalities to set an agenda for the nation,' says political analyst Neerja Chowdhury.
In recent days, Congress leaders have made repeated overtures to the party's former communist partners, who withdrew their support from the ruling coalition last year in protest at the signing of a nuclear pact with the US.
The election comes at a pivotal time for India and its 1.1bn people.
After five successive years of almost double-digit growth that lent the country the international clout it has long sought, the economy has been badly hit by the global downturn.
And there are major security concerns over growing instability in South Asia, particularly in arch-rival Pakistan, with whom relations plunged to a new low following last year's militant attack on Mumbai.
