Almost two years after nabbing them, the Central Bureau of Investigation is set to file its chargesheet against Flex Industries Chairman Ashok Chaturvedi and suspended Chief Commissioner of Excise, Someshwar Mishra.The chargesheet was held up for months since the CBI was awaiting sanction for prosecuting Someshwar Mishra from the Ministry of Finance.The Government’s sanction reached the CBI last week and sources say the chargesheet will be filed in a Delhi court as early as on Thursday. Prior to this, the agency had sent several reminders to the Government about how the approval for prosecuting Mishra had been delayed despite there being a strong case of corruption against him.It was on November 7, 2001 that the CBI caught Mishra red-handed as he was receiving a bribe from an employee of Flex Industries. While Rs 5 lakh had been recovered from Mishra’s office, another Rs 5 lakh was recovered from his car and were to be delivered to Mishra’s house.The case had been clinched with the help of telephone surveillance during which the CBI taped a conversation between Chaturvedi and Mishra over the Rs 10-lakh payment.The Indian Express had first reproduced extracts of the three-minute conversation which has Mishra instructing Chaturvedi, ‘‘Adha office mein dena, adha ghar par.’’ The conversation indicated that earlier money transactions had also taken place between the two.Both Chaturvedi and Mishra had subsequently been sent to Tihar Jail and are as of now on bail.