Delhi Chief Minister Arvind Kejriwal's aide Bibhav Kumar was arrested on Saturday in connection with the alleged assault on AAP MP Swati Maliwal, officials said.
Kumar was picked up from the chief minister's residence by a Delhi Police team around noon, a senior police officer said.
The development comes after Maliwal's Medico-legal report revealed bruises on her leg and under the eye on her right cheek.
Advocate Karan Sharma representing Bibhav Kumar said, "We've not received any information from the police yet. We've sent them an e-mail that we will cooperate in the investigation."
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