The political war heats up between Delhi Chief Minister Sheila Dikshit and India Against Corruption (IAC) leader Arvind Kejriwal as Dikshit has served a legal notice against Kejriwal on Monday (Oct 22) for allegedly casting aspersions and defaming her. The defamation notice has been sent to Kejriwal for using filthy language against the chief minister. Meanwhile, Kejriwal has hit back saying that he won't be cowed by legal notices.