Calcutta, Jan. 13 :    Calcutta, Jan. 13:  In a bid to increase involvement of teachers in examination-related work, Calcutta University has decided to do away with its age-old system of deploying research scholars and non-teaching employees in examination halls on invigilation duty during post-graduate examinations. Instead, the university will appoint only teachers of the respective departments to oversee the candidates during all post-graduate examinations. The new system has been put into effect recently. According to sources in the university, invigilation during examinations is a part of the duty of teachers and they are to do the job without any additional remuneration. But over the past decades, the university had been practising a system of appointing research scholars for invigilation duty. As a result, many faculty members could skip invigilation duty, even though it is obligatory for them. There are instances when non-teaching staff were also asked to stand in for invigilation duty at post-graduate examination halls. The sources said the government, as a part of its drive to improve work culture in state-aided educational institutions, had recently sent a directive to the university, asking the authorities to ensure that teachers are made to perform their obligatory duties. The move also followed complaints from a section of examinees, who said that absence of teachers in the examination halls led to confusion, as the invigilating research scholars often failed to clarify their doubts on the question papers. 'Along with setting question papers and examining answer scripts, invigilating during examinations is a part of the duty of the teachers engaged at the post-graduate level,' said an official of the university, preferring anonymity. 'In the revised system, only teachers of the respective subject will be required to be present at the examination hall to mind the candidates. For example, only a teacher who teaches chemistry will be deployed during the M.Sc chemistry examination,' the official said. The university authorities are expected to save a considerable amount by not engaging research scholars, as over 200 post-graduate examinations are conducted by the university every year, and each of the scholars who stood in as invigilator was given refreshment and paid a nominal remuneration. Undertrial death: There was furore in Alipore Central Jail after the death of 23-year-old undertrial Chandi Biswas in the jail hospital on Sunday morning. His co-inmates charged the doctors with negligence. Jail authorities started a probe and sent a report to the state human rights commission. They also ordered a magisterial inquest. Biswas, sentenced to six years' rigorous imprisonment on charges of murder, was lodged in jail in February last year. He had been suffering from various mental ailments.