Around 35 percent voter turnout was registered till 11 AM on Friday in the West Tripura Lok Sabha seat amid tight security.

Election officials said that over 27.6 percent voters cast their votes in the by-elections to the 7-Ramnagar assembly seat.

Though there is no untoward incident reported from anywhere in the parliamentary constituency, state Congress President Ashish Kumar Saha alleged that party agents were not allowed to enter into the several polling stations.

Tripura Chief Minister Dr Manik Saha after casting his vote at a school here expressed his confidence that BJP would win in Tripura's two Lok Sabha seats and Ramnagar assembly seat.

Polling for the Tripura West Lok Sabha seat and the Ramnagar assembly segment, where by-polls are being held, started on Friday morning under strict security arrangements.

Election officials said that 14.63 lakh voters, including 7.34 lakh women electorate, would decide the fate of nine candidates in the politically important parliamentary seat.

The main contest is expected between former Tripura Chief Minister and BJP candidate Biplab Kumar Deb, and state Congress president Ashish Kumar Saha, of the INDIA Bloc

The voting also going on simultaneously for the by-election to the Ramnagar Assembly seat, which fell vacant after the demise of sitting BJP MLA Surajit Datta on December 28 last year.

Two candidates, one each of the BJP and the CPI-M, are trying their electoral fortunes in the Ramnagar Assembly by-poll.

Over 20,000 polling personnel would conduct the voting in 1,686 polling stations in the Tripura West Parliamentary constituency. Voting would continue till 5 p.m. without any interruption.