The case was transferred to Delhi by the Supreme Court on the plea of Ranbir's father Ravindra Singh.
Special CBI Judge V K Maheshwari directed issuance of NBWs against 11 of the 18 accused Dehradun police personnel seeking their presence in the court on June 5.
The NBWs have been issued against the then constables Satbir Singh, Sunil Saini, Chander Pal, Saurabh Nautiyal, Nagendra Nath, Vikas Chandra Baluni, Sanjay Rawat, Mohan Singh Rana, Inder Bhan Singh and Manoj Kumar and Head operator at city control room Jaspal Singh Gosain.
The constables are among the 18 policemen chargesheeted by the CBI in connection with Ranbir Singh encounter case that rocked the hill state in July 2009.
They were arrested in wake of evidence that 22-year-old Singh, an MBA student from Ghaziabad, was allegedly gunned down by Uttarakhand police after being caught at Mohini Road where he and his companions were allegedly trying to commit some crime on July 3, 2009.
Singh's father Ravindra Singh had alleged that his son had gone to Dehradun in search of a job where he was arrested by the police on July 3 on pretext of being involved in some robbery.
Also Read
He had alleged that on the same day, 29 bullets were pumped into his body and the incident was camouflaged as an encounter.
Besides these 11 policemen, others who are accused in the case and presently lodged in Tihar Jail are the then inspector Santosh Jaiswal, Sub-inspectors Gopal Dutt Bhatt, Rajesh Bisht, Neeraj Kumar, Nitin Chauhan and Chandra Mohan and constable Ajeet Singh.
All the 18 policemen have been charged for various offences such as murder, kidnapping, criminal conspiracy, destruction of evidence and public servant framing incorrect record.