Delhi Chief Minister Arvind Kejriwal has justified AAP's decision to expel dissident leaders Prashant Bhushan and Yogendra Yadav from top party posts, saying limits were "crossed" and "conspiracies" hatched. Kejriwal also expressed regret for using abusive language that surfaced in audio sting in which he purportedly hurled expletives against rebel AAP leaders Ajit Jha and Anand Kumar. I am a human being and I make mistakes. I was angry. The kind of language could have been avoided," he said in comments that came amid the turmoil in the Aam Admi Party(AAP). The Delhi Chief Minister was speaking after launching a book titled "The Crown Prince, The Gladiator and the Hope" authored by AAP leader Ashutosh.