A 36-year-old techie was arrested for allegedly sending "offensive and threatening" emails to Delhi Chief Minister Arvind Kejriwal, police said on Saturday.
The man has been identified as Manish Saraswat, a resident of Ajmer district in Rajasthan, they said.
According to a senior police official, two "offensive and threatening" emails were sent to the official email address of the Delhi chief minister last month.
Further details are awaited.