The court, after perusing the status report of the Karnataka Police, said there appears to be a link between the murders of journalist Gauri Lankesh and rationalist M M Kalburgi.
Girish Karnad along with many other activists took part in an event organised to mark Gauri Lankesh's death anniversary.
The SIT has arrested 12 people including the alleged mastermind Amol Kale and sharpshooter Parashuram Waghmare.
The SIT's additional charge sheet stated that a network within Sanatan Sanstha targeted Lankesh for no personal reasons.
Gauri Lankesh, known for her progressive and fearless writing, was shot dead at close range by unknown assailants at her home here on September 5 2017.
Karnad was among the most vocal critics of hardline Hindutva whose security was beefed up following the killing of Lankesh in September last year.
However, the probe agencies have not been able to establish the group's link with the killing of rationalist and communist leader Govind Pansare.
The US-based journalist was in New Delhi on Tuesday to discuss his new book "Illiberal India: Gauri Lankesh and the Age of Unreason".
"No," said a police official when asked whether the Maharashtra SIT had approached them to question the gang.
Waghmare's is the 6th arrest in connection with the killing of Lankesh, who was shot dead in front of her house here on September 5 last year.
This is the first official confirmation of the link between the two killings which happened after a gap of two years of each other.
The contact details given by the accused while making his account on Facebook were fake, the police said.
The SIT, probing the murder, said it arrested alleged gunrunner KT Naveen Kumar, who was taken into police custody on March 2 for interrogation in connection...
SIT has found from Kumar’s mobile phone records that he had received many calls from numbers with the prefix 0824, which is the code for Mangalore.
The political activists largely focused on the communal and right-wing politics that Gauri Lankesh had opposed through her journalism.
Kanhaiya, Rashid, Khalid and Left activist Kavita Krishnan took to Twitter to remember Lankesh.
Franks called Gauri an "anti-establishment figure with a reputation for her fearless criticism of undemocratic elements within the parties in power."
Police not sure if weapon used in khalburgi murder was used to kill Gauri.
"There is a long list of people from various walks of life who were paid tributes at the RSS meeting. It also includes the name of Gauri Lankesh"