Guwahati Kolkata / Agartala, April 4 (TIWN) : Tension prevails at NE & Bengal after disruption during the polling session at both the states. At least two people were killed and 20 others, including a policeman, were injured as suspected militants triggered a bomb explosion on Monday evening in Dudhnoi in western Assam's Goalpara district, police said. "The blast took place around 6.20 p.m. and preliminary investigation indicated it to be an improvised explosive device (IED). The IED was kept in a garbage bin in the area. The explosion instantly injured 22 people and two of them died on the way to hospital," Superintendent of Police Nitul Gogoi said. He added that a policeman was injured in the blast along with civilians. The blast site is close to the Dudhnoi police station, police said. Police suspect militants of the anti-talk faction of ULFA were responsible for the blast. On the other hand The Election Commission on Monday recommended repoll in a booth in Ranibandh assembly constituency in West Bengal's Bankura district following discrepancy in recording the number of votes in an Electronic Voting Machine.

"In polling station no.20 of Ranibandh Girls High School, it was found that while 140 votes had been cast, the EVM recorded only 48. It was found that the third polling officer had time and again forgotten to unlock the machines before voters cast their votes," state Chief Electoral Officer Sunil Gupta told the media.

The polling official concerned was removed.

Gupta said the recommendation for repoll has been sent to the chief election commissioner.

He said reports of mediapersons being attacked in Salboni in West Midnapore district were being probed.

The CEO's office received 537 complaints during the day, when 18 constituencies spread over three western districts of West Midnapore, Bankura and Purulia went to the hustings. A total of 531 complaints were disposed of.