Tharoor was granted relief on a personal bond of Rs 20,000.
Akbar, who resigned as Union minister on October 17 last year, filed a private criminal defamation complaint against Ramani after his name cropped up on social media as the #MeToo campaign raged on in India.
The court also directed Delhi police to preserve vigilance report in the matter.
Earlier, a court had granted the former Union minister anticipatory bail, despite Special Investigation Team's opposition.
Kejriwal and others had held a demonstration against coal scam in front of the then Prime Minister Manmohan Singh's house in 2012.
Anshu Prakash was allegedly assaulted during a meeting at Kejriwal's official residence on February 19. The police said the chief minister was present when the alleged assault took place.
'By keeping silent, I could have avoided the subsequent targeting. But that would have not been the right thing to do'
Akbar had filed a defamation case against Priya Ramani for accusing him of sexual misconduct. The allegations levelled against him forced him to resign from the Union Cabinet on October 17, 2018.
The court rejected the plea noting that the complainant has already passed away.
A Delhi court, on Thursday, discharged Chief Minister Arvind Kejriwal and suspended BJP MP Kirti Azad in a criminal complaint filed against them by the Delhi and District Cricket Association and its then vice-president Chetan Chauhan for allegedly defaming the DDCA and Chauhan.
The AAP chief was accused by Dikshit's then political secretary Pawan Khera alleging remarks against Dikshit during power tariff hike protests in October 2012.
Ramani accused Akbar of sexual misconduct around 20 years ago.
He sought a seeking a direction to Congress chief Rahul Gandhi, his mother Sonia Gandhi and other accused to either admit or deny if certain documents filed by him were original.
Vivek, in his complaint, had said the magazine and Ramesh had attempted to "deliberately malign and defame" him to "settle scores with his father".
CS Anshu Prakash was allegedly assaulted during a meeting at Kejriwal's official residence on February 19 night.
The former Union minister filed a criminal defamation case against journalist Priya Ramani after she named him in the #MeToo campaign.
Time to tell our side of story: Ramani on summons in Akbar defamation case.
Kejriwal had earlier tendered an apology to Shiromani Akali Dal leader Bikram Singh Majithia for having levelled "unfounded" allegations related to involvement in drugs trade against him.
The cross-examination of Akbar by Ramani's counsel remained inconclusive and would resume on on July 6.
Sunanda's mail and messages on social media should be taken as a "dying declaration", the police told the court, which reserved for June 5 its order on whether to summon Tharoor as an accused in the case.
In his complaint, Delhi Bharatiya Janata Party leader Rajeev Babbar said his religious sentiments were hurt.
Doval had moved court against the magazine, the author of the article Kaushal Shroff and Congress leader Jairam Ramesh for holding a press conference on January 17 reiterating the 'baseless and unfounded facts' as narrated in the article.
The article claimed that Vivek Doval was running a hedge fund whose promoters are of dubious antecedents.
The HC closed both the defamation suits against Kejriwal and four AAP leaders after a joint settlement plea was moved before it.
Akbar's lawyer said that he had resigned from the post of minister of state for external affairs due to these allegations and this showed the extent of damage caused to his reputation.
The police has named Tharoor as the only accused while also alleging that he had subjected his wife to cruelty.