PWD minister, Mr. Kshitri Goswami has suspended three officers who were held responsible for the malfunctioning of the microphone system in the state assembly on Tuesday.

A snag in the sound system had forced speaker Hashim Abdul Halim to postpone the winter session till 11 am on December 10. Mr. Goswami informed that a four-member inquiry committee has been formed to probe into this matter. Executive engineer Niranjan Das, assistant engineer Debasish Pal and sub-assistant engineer Krishnapada Ghosh, from the electrical wing, have been suspended till the inquiry ends.

The PWD department's engineer-in-chief, Mr. Swapan Das is going to head the team of four members, which will submit its report by December 15. A computer expert from a central government agency also has been chosen as a member of the committee.

The Kshitri Goswami said, "I was told that a virus in the software of the sound system caused the malfunction. I have chosen a computer expert to probe into the matter and assess whether the software system was really damaged."

Mr. Goswami further informed that the CEO of the Germany-based company, which had installed the sound system in the state assembly, has been asked to come down to Kolkata from Singapore to help the investigation committee to quickly reach a conclusion.

The minister has warned the officials against repeating this mistake in the future and has instructed them to always monitor the sound system before putting it to use.