As the investigation of the Delhi liquor scam progresses, the war of words between the Aam Aadmi Party (AAP) and the Bharatiya Janata Party (BJP) is intensifying. Meanwhile, sources in the Arvind Kejriwal-led party said on Monday that AAP has the audio recording of the BJP’s "offer" to Sisodia that all cases against him will be dropped if he switched sides, as reported by news agency PTI. "We have the audio recording of the BJP’s offer and will make it public to expose the saffron party when the time comes," one of the sources told PTI.