The elections to the first phase would be held on April 22.
The state asked the PMO to accommodate three more dignitaries, including DMRC Principal Advisor E Sreedharan.
For Pinarayi, a victory in Thrikkakara would have come as public endorsement of his development initiatives, including controversial K-Rail project, which has witnessed widespread protest
"I congratulate the people of Kochi on the proud moment," the PM said.
'Bribing voters is very, very less in Kerala; I would say, almost zero... Across the border, there is so much of money power during the elections. But I don't think in Kerala, people vote for money... People of Kerala do believe that politics can bring in good governance, 'says Nalini Netto, the Chief Electoral Officer, Kerala.