A proctor of a Bihar university was arrested on Sunday for alleged links with Maoists and two suspected guerrillas apprehended from the varsity hostel in Bhagalpur but all three were later released, police said.
Professor Vilakhjhan Ravidas, proctor of Tilka Manjhi Bhagalpur university in Bhagalpur and Kapildeo Mandal and Arjun Paswan were released after they filed a bond in a police station.
"Ravidas and others were released due to lack of evidence against them," said a district police official.
Ravidas, however denied any links with Maoists.
Police said Ravidas was arrested on information provided by suspected Maoist Ghanshayam alias Ghoghan Da. A pistol, mobile phone and Maoist literature were allegedly seized from Ghanshayam who gave information about the proctor during his two-hour questioning.
Police then raided several places and arrested Ravidas.
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"We arrested Ravidas from his private residence for links with Maoists and for providing patronage to them," Bhagalpur Superintendent of Police Vivek Kumar had said earlier.
The two suspected Maoists arrested from the varsity's welfare hostel, of which Ravidas is incharge, were Mandal, who is a visiting professor of Murarka college, and Paswan, who were also released.
However, police said investigation will continue in the case.