The Thiruvananthapuram MP and author of several books was speaking at the Symbiosis International University Literary Festival via video-conferencing.
A bench comprising Justices U U Lalit and Ajay Rastogi dismissed as withdrawn the plea filed by Bharadwaj.
Sudha Bharadwaj, 58, had approached the HC seeking bail, saying that she suffered from chronic conditions such as diabetes and hypertension.
After hearing arguments from the NIA and Bharadwaj's counsel, the HC directed the Maharashtra government to submit the latest health report of the activist.
Bharadwaj is an accused in the Elgar Parishad-Koregaon Bhima case and has been lodged in Byculla women's prison since September 2018.
In an affidavit submitted last week, the NIA urged the court to dismiss activist Sudha Bharadwaj's interim bail plea.
Bharadwaj, who was arrested in August 2018, moved the HC last week against the order of the NIA court in Mumbai that rejected her interim bail plea on May 29.
The NIA opposed Bharadwaj's bail plea saying that she was not suffering from any life-threatening ailment.
Justice A M Khanwilkar read out the verdict for himself and the CJI, while Justice D Y Chandrachud said he was unable to agree with the view of the two judges.
The five activists --Varavara Rao, Arun Ferreira, Vernon Gonsalves, Sudha Bharadwaj and Gautam Navlakha-- are under arrest at their respective homes since August 29.
The Maharashtra police had arrested the five activists on August 28 in connection with an FIR lodged following a conclave.
Reacting to this in a handwritten statement, Bharadwaj, who is under house arrest, Friday said the purported letter shown by the Pune Police is a mixture of innocuous.
Prominent people who signed the letter included economist Jean Dreze, Afzal Anees and Kavita Srivastava.
Bhima Koregaon case: Those speaking against human rights violation being targeted by present regime, says Sudha Bharadwaj
Bharadwaj has been confined at her residence in Faridabad, under the guard of police officers, and allowed to meet only her lawyer.
CPI-M on Tuesday condemned the arrests of various activists and journalists such as Sudha Bharadwaj, Varavara Rao and Gautam Navlakha.