The Central Bureau of Investigation (CBI) has summoned Shajahan Sheikh's brother, Sheikh Sirajuddin, to appear before officers in West Bengal's Sandeshkhali for alleged land grabbing. The CBI believes Sirajuddin played a crucial role in the scam. The CBI has been visiting Sandeshkhali daily to investigate the case. The Calcutta High Court ordered a CBI investigation into allegations of crimes against women and forcible land grabbing in Sandeshkhali, which had witnessed protests over the issues.