Their release came after Punjab police moved an application under Section 169 of CrPC (deficient evidence) in the court of Judicial Magistrate Satish Kumar here.
"We don't require their judicial custody, but they will remain part of the probe," ADGP IPS Sahota told PTI.
Rupinder Singh and Jaswinder Singh, brothers of Panjgrain Khurd village, were arrested by police in connection with the first incident of sacrilege of holy book at Bargari village in Faridkot that had triggered protests by Sikhs and hardliners across Punjab.
"Both the brothers have been released from the Fardikot jail this evening," he said.
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Earlier, the brothers alongwith their family members and activists of Sikh organisations, including hardliners had claimed that the two were falsely implicated by police in the sacrilege case.
After their arrest, police had claimed foreign hand behind the incident of sacrilege with connections linked to Australia and Dubai.
Meanwhile, Sahota said "the investigation was under process.