Sri Lanka's Opposition candidate Maithripala Sirisena is expected to be declared winner by around 4,00,000 votes in the presidential elections.

With nearly a third of the ballots officially declared, Sirisena has 52.3 per cent of the vote and Rajapaksa 46.5 per cent, according to the Daily Mirror.

Rajapaksa left Temple Trees, after a discussion with the opposition leader this morning  assuring smooth transfer of power, the presidential media division said.