BY A STAFF REPORTER: The preliminary TET exams in the west bengal will begin on Sunday. Meanwhile, surveillance is going on from the control room so that no untoward incident takes place in the examination. The video has already gone viral on social media. About 6.9 lakh candidates are going to take the Teachers Eligibility Test in West Bengal today. Elaborate security measures have been taken by the West Bengal Board of Primary Education. The board has set up a central control room to monitor the examination centres.