Kejriwal has not yet responded to the notice.
On February 20, the Chief Secretary alleged that he was assaulted by two Aam Aadmi Party MLAs in the presence of Kejriwal at the Chief Minister's residence. A senior police officer said that a notice has been sent to Kejriwal and he will be examined on May 18 at 11 am.
Reacting sharply to the development, the AAP alleged that Prime Minister Narendra Modi is "misusing" the Delhi police to "bother" Mr Kejriwal. Kejriwal has been asked to be available at his residence or office on May 18 at 11am. "Modi ji is misusing the police to bother the chief minister but people stand by Mr Kejriwal".
"A notice was sent to the Chief Minister to join the probe in CS assault case".
Since the AAP government has come to power, Chief Minister Arvind Kejriwal and his deputy Manish Sisodia have been accusing the BJP-led Centre of not giving Delhi's "due share" in the central taxes revenue.
Later, AAP MLAs Amanatullah Khan and Prakash Jarwal were arrested for the alleged assault.
Delhi Police have questioned Bibhav Kumar, Kejriwal's private secretary, in connection with the case.
On February 23, a police team had examined the CCTV system installed at the chief minister's residence in the Civil Lines area and seized the hard disk.