A young woman threw ink at Mr Kejriwal in a public rally on Sunday.
The Aam Aadmi Party today alleged that the ink attack on Chief Minister Arvind Kejriwal was part of a "big rehearsal" to possibly "physically harm" him in future and that deliberately lax security was being provided to him by Delhi Police.
AAP leader Ashutosh claimed that "not a single" security person escorted the Delhi Chief Minister, who comes in Z-plus category, during his recent train journey from Punjab to the national capital after addressing a public rally there.
"I can see a method or a pattern here. There's a deep conspiracy and it's a well-known fact that Delhi Police directly reports to the Prime Minister's Office and not the Home Ministry," he told reporters at a press conference at Deputy Chief Minister Manish Sisodia's residence.
"The attack signals that the incidents are part of a big rehearsal. The conspiracies are being tested time and again. One also needs to look at the kind of hate being whipped up against Kejriwal by BJP and RSS," he said.
He said that the attack, where a young woman threw ink at Mr Kejriwal in a public rally yesterday, was not only "shameful" but also serious as India has had a history of assassinations of top leaders including former Prime Ministers Indira Gandhi and Rajiv Gandhi.
"After assessing the threat perception, Centre itself gave Z-plus security status to the Delhi CM. We did not ask for it. Then how could a woman get this close to the CM and throw stuff at him? They can't claim that they were caught unawares," AAP's Delhi Convenor Dilip Pandey said.
Bhavna Arora, the woman, who claimed to be a member of the Punjab unit of Aam Aadmi Sena, was later detained by police and whisked away to Model Town police station for questioning. A case was also registered.
Reacting sharply to the incident, Mr Sisodia yesterday said the BJP was conspiring to attack Mr Kejriwal and the entire Cabinet because they cannot stand the success of the odd-even scheme and AAP's popularity among the masses.
Delhi BJP chief Satish Upadhyay rejected the allegations and insinuated that the incident could have been "stage managed" while Delhi police said the charges were "misconceived and unfounded".