The convict, who has links with Mumbai's underworld, has been undergoing treatment in a Delhi hospital since the last few days.
Akhtar was arrested in 2014 when he was heading the proscribed terror group Indian Mujahideen.
The Delhi Police's Special Cell had approached the Tihar Jail administration on Thursday after the new angle emerged, according to official sources.
The police took the help of a private cyber agency to track the location of the phone on which the Telegram channel was created, the official said.
Toolkit row: Climate activist Disha Ravi released from Tihar jail after court terms evidence as scanty and sketchy
While giving bail to the activist, saying citizens are conscience keepers of government in any democratic nation and cannot be put behind the bars simply because of dissent.
Talked to farmers inside Tihar Jail, will write detailed report: Journalist arrested by Delhi Police
Punia was released from the prison on Wednesday after a court granted him bail.
The panel has found jail authorities to be negligent in the suicide case of 37-yearold Ganori Prasad and observed that if proper watch over him was maintained, his life might have been saved.
Chief Metropolitan Magistrate Dinesh Kumar directed the jail Superintendent to provide proper medical treatment to Khalid as per the prison rules.
Ramanuj Thakur was the maternal uncle of the main accused Brajesh Thakur.
Katihar SP Vikas Kumar said that he has received information with regard to PFI pasting posters at several places in the district.
Religare case: Delhi court directs REL's ex-CMD to surrender before Tihar jail authorities within two days
According to the ED application, Sunil Godhwani was granted interim bail for three weeks in September on account of his father-in-law's death.
The former Rashtriya Janta Dal (RJD) leader was shifted to Tihar jail in 2018 by the Supreme Court from Siwan jail in Bihar.
The inmates can purchase these sweets and outsiders can get them through shops in the jail complex.
Delhi riots: Court directs Tihar jail authorities to allow Umar Khalid to step out of cell as per rules
Khalid has been arrested under the stringent Unlawful Activities (Prevention) Act in a case related to 'premeditated' conspiracy in the north east Delhi riots in February.
As per rule, an undertrial prisoner should be allowed to leave his cell early morning, work on a voluntary basis, have access to newspapers, library books and games.