Berhampur: The death toll in Odisha in the aftermath of Cyclone Arnab rose to four on Saturday after the body of a 20-year-old man, who had been missing since Tuesday, was fished out of Mahendra Tanaya river in Gajapati district. Meanwhile, around 170 personnel continued a massive operation to trace 12 villagers missing after landslides in Ganjam district.In Gajapati, the decomposed body of Premanand Gamanga, who went missing while crossing the swollen Mahendra Tanaya river on his way back to his village, Badasada, was found on Friday afternoon, inspector in charge of Rayagada police station, Pramod Kumar Khandual, said. His body was sent for post-mortem on Saturday.On Thursday, three people, including a couple and their one-year-old son, died in a massive landslide at Dakesi, a hilltop village under Raikia block of Kandhamal district. Their bodies were recovered on Friday, Kandhamal collector Ved Bhusan said.Search operations, meanwhile, continued at Gadipapali, another hilltop village near the Ganjam-Kandhamal border, where 12 people remained unaccounted for following massive landslides triggered by extreme rainfall under the influence of Cyclone Arnab.The village has around 25 residents. Twelve of them had left for Kandhamal after heavy rain began on the night of Oct 27 and were safe at a temporary shelter. The remaining 13 were in the village when the landslide struck.One of them, an elderly woman identified as Tarabati Pradhan, was rescued, while efforts were underway to locate the other 12, official sources said.Around 170 personnel from NDRF, ODRAF, fire services and police have been deployed in the search operation by the Ganjam and Kandhamal district administrations.Ganjam collector Keerthi Vasan V said rain resumed in the area on Saturday afternoon and could hamper the search operation.In another incident, a 61-year-old man went missing in a river at Jeeranga in Gajapati district on Saturday. Police suspect he may have slipped into the river while taking a bath. Fire services personnel launched a search to trace him.