According to sources Congress President Sonia Gandhi and Congress trouble shooter Pranab Mukherjee has given go-ahead to Home minister P Chidambaram to tackle opposition on allegations regarding Aircel-Maxis deal. Home Minister has rubbished all charges as wild and reckless, saying neither him nor his family has any stakes in Aircel. Earlier, Senior BJP leader Yashwant Sinha targeted P Chidambaram in the Lok Sabha over the Aircel-Maxis deal; dubbing it as a 'big scam', resulting in ruckus and pandemonium in the House.