CBI had registered the case under sections 120-B read with 420 of IPC and under various provisions of Prevention of Corruption Act against Vini Iron and Steel Udyog ltd, its directors -- Sanjeev Kumar Tulsyan, Prashant Tulsyan, Vaibhav Tulsyan, Nisha Tulsyan, Vimal Kumar Tulsyan, Nirmala Tulsyan and Hemant Kumar Aggarwal.