Zubair, however, will remain in jail in other cases that have been filed against him by the Uttar Pradesh police.
On being asked what she expects will happen on December 21, Kanimozhi told reporters: "Do I look nervous... Let us see." She was present in court when the date was announced.
Jaitley had alleged that Kejriwal and other AAP leaders had made defamatory statements that he and his family members had made pecuniary gains by associating with M/s 21st Century Media Pvt Ltd, a sports management company.
The plea was moved on the ground that both the accused are not required for any custodial interrogation as they are in judicial custody.
Accompanied by senior leaders and also the young MPs of the party, the Congress Vice President is expected to highlight the "lawlessness" in Delhi in the wake of Patiala House court attacks and the way the government has handled the JNU row as also the Rohith Vemula suicide and the agitation in FTII in Pune.
The Home Ministry has asked Delhi Police to submit a report today itself detailing the Patiala House court incident.
Finance Minister Arun Jaitley, who is embroiled in the controversy, has filed a civil defamation case in the Delhi High Court against AAP leaders for false statements against him and his family members. He is also expected to file a criminal defamation suit in the Patiala House Court.
The case pertains to alleged irregularities in allocation of Amarkonda Murgadangal coal block to Jindal group firms -- Jindal Steel and Power Ltd (JSPL) and Gagan Sponge Iron Pvt Ltd (GSIPL).
Team Anna members have staged a silent protest outside the Parliament on Monday to put pressure on the government to pass a strong Lokpal Bill. Reports say Team Anna will be moving the protest outside Patiala House Court at 4.30 on Monday evening.
All bail applications, including DMK leader Kanimozhi and seven others, in the 2G scam case have been dismissed on Thursday and the trial will begin from November 11.
Five supporters of anti-corruption crusader Anna Hazare were on Thursday attacked by some workers of the Bhagat Singh Kranti Sena.
The CBI will interrogate the former telecom minister A Raja, former telecom secretary Sidharth Behuria and ADAG Group MD Gautam Doshi on Monday in connection with a second chargesheet into the 2G spectrum scam.