Bolpur (West Bengal), April 11 : The CBI, probing the Bogtui carnage in which nine people were burnt alive in West Bengal’s Birbhum district, has arrested the father-in-law of one of the main suspects, officials said on Monday.The Central Bureau of Investigation (CBI) has so far made five arrests ever since it took over the case from the state government’s Special Investigation Team (SIT) on March 26 following a Calcutta High Court order.Last week, the federal agency had taken into custody four suspects from different hideouts in Mumbai and brought them to the state on transit remand.On Sunday, the CBI sleuths picked up Samir Sheikh, the father-in-law of Lalon Sheikh – one of the main suspects in the March 21 gruesome incident in which seven women and a minor, as also a man were burnt alive. The gory incident happened hours after Trinamool Congress leader Bhadu Sheikh was bombed to death by four dentified miscreants at a tea stall in the area under Rampurhat block, around 200 kilometers from Kolkata.Samir is the 26th person to be arrested in the Bogtui carnage.Lalon Sheikh has been on the run since the night of the crime, said to have been planned and executed by his followers. Lalan was also a close lieutenant of Bhadhu Sheikh, the Deputy Chief of the TMC-run Barsal Panchayat and a powerful man in the area. The CBI also searched Bhadu Sheikh’s house on Sunday and seized incriminating documents.The premier probe agency also quizzed the widow of Bhadu Sheikh, as part of its inquiry into his murder following an order from the Calcutta High Court on Saturday PC SSP