In a relief to IFS officer Sanjiv Chaturvedi, the whistleblower who blew the lid off corruption in Haryana's forest department, President Pranab Mukherjee quashed the state's chargesheet against him on Thursday. Chaturvedi, presently the Chief Vigilance Officer at AIIMS, had locked horns with the Haryana government in January 2009 after he detected a multi-crore plantation scam in Jhajjar.