The mention of an audio in 2021 could relate to a scandal or a controversy where an audio recording was circulated. There was a significant controversy in 2021 involving a political figure from Karnataka where an audio clip alleging sexual misconduct was released. The person involved was a prominent leader, but the name in the query isn't matching. Could this be the incident? Let me recall. Yes, in 2021, a political leader in Karnataka was accused based on an audio clip that was part of a larger controversy. The name "Rajkumar" might be confused with "Kumar" in the leader's name. The leader's name was actually R. Chandrashekar, but the user might be referring to "Rajkumar" as a common term or a mix-up.