The human rights organisation acted on two complaints lodged by New Delhi based human rights activists RH Bansal and Bhubaneswar based Akhanda.
"The commission has clubbed both the complaints together," Akhanda, one of the complainants and managing trustee of the Odisha based rights organization India Media Centre (IMC) said.
The commission has sought magisterial inquiry report, inquest report; post mortem report along with report of independent investigation, he said.
Thangjam Nanao Singh of Prime Time, a Guwahati-based satellite channel, was killed Thangmeiband area last Dec 22 afternoon when police opened fire to disperse supporters of the Manipur Film Forum who had allegedly torched a police vehicle.