Bhubaneswar, May 13LBy Prasant Bhuyan) Demanding a CBI probe into the Rishi death case, members of Chhatra Congress led by Itish Pradhan today staged a demonstration in front of the Naveen Nivas here and attempted to barge into the Chief Minister’s residence. Student Congress state presidet Itish Pradhan and some of his supporters were today detained by police while they were trying to enter inside Naveen Nivas, Odisha Chief Minister Naveen Patnaik’s residence here. Gatecrash bid by Congress students’ wing led by Itish into the Naveen Nivas was foiled by police personnel present at the spot. Later Itish and three others were detained by the cops.Itish, the Chhatra Congress president, said, “This demonstration is just a beginning on the occasion of Rishi’s birthday today. Alleging improper investigation into the mysterious death of engineering student Asutosh Mohanty alias Rishi and demanding a CBI probe into the incident, Pradhan and his supporters marched towards Naveen Nivas holding photos of Rishi.They attempted to enter inside Patnaik’s residence but were stopped by cops who later detained them.“The agitation will continue till fulfillment of our demands,” Pradhan said. Worth mentioning, the Congress has been alleging involvement of Bhubaneswar Municipal Corporation (BMC) Mayor Anant Narayan Jena students would gherao the Naveen Nivas.”The Odisha Congress has been alleging that Bhubaneswar Municipal Corporation (BMC) Mayor Anant Narayan Jena’s involvement in the Rishi death case in Rishi’s death.