The supervisor, identified as Prabhat Kumar, aged about 35 years, was last night found murdered on the fourth floor of the building with an injury on his head, they said.
Prime facie it seems that he was hit with a hard object and some workers involvement is suspected in the matter, police said.
Prabhat's motorcycle and mobile phone were missing from the spot. Police are scrutinizing CCTV footage to identify the accused.
In another incident, body of an unidentified person was today found in Tusiana village under Ecotech 3 police station limits, they said.
It seems that he was shot dead and then the body was dumped in the village, Bhadana said.
The body was sent for postmortem and efforts are on to identify the victim, the SHO added.