The AAP on Sunday alleged that the death threats to Delhi Chief Minister Arvind Kejriwal and other party leaders were issued as part of a "well-orchestrated" conspiracy and asked Home Minister Rajnath Singh to take action.

In a letter to the Home Minister, Aam Aadmi Party (AAP) leader Raghav Chadha wrote that a person dressed as an advocate, who identified himself as Vivek Sharma, threatened Kejriwal and other AAP leaders in a Delhi court during the hearing of a defamation case filed by Union Finance Minister Arun Jaitley.

Chadha said the incident raises serious questions over law and order in the city, which comes under the Union Home Ministry.

He also indicated that the threat may have been issued on directions of Jaitley.

"Quite clearly, Sharma was not acting unilaterally but with the tacit blessings of his political masters and his actions, which amount to criminal intimidation, are part of a well-orchestrated strategy to harass, coerce and pressurise the accused and prevent them from defending themselves," the AAP leader wrote. 

A Delhi court on Saturday witnessed a heated exchange between lawyers of Jaitley and Kejriwal during the hearing of a defamation case filed by the former, with lawyers for the AAP leader claiming they had received "death threats" in the court room.

Jaitley has alleged that the AAP leaders made "false and defamatory" statements in a case involving the Delhi and District Cricket Association (DDCA), thereby harming his reputation.

Apart from Kejriwal, the accused in the case include AAP leaders Kumar Vishwas, Ashutosh, Sanjay Singh, Chadha and Deepak Bajpai.