A fresh post-mortem has also been ordered after the relatives of the victim Jitendra Pal objected to the previous report which didn't show any sign of beating, Kanpur SSP Shalabh Mathur today said.
"All the accused, Satyendra Yadav, Jitendra Yadav, Aman Yadav and Bunty Yadav have been arrested," he said, adding that four policemen, including an inspector, have been suspended over complaints of negligence.
35-year-old Jitendra was allegedly beaten to death by his neighbour Satyendra and the other accused yesterday following an altercation over a drain outside his house at Ratiram Purwa village in the district.
He was taken to hospital where he was declared brought dead, police said, adding that Satyendra and one of his companions had been arrested yesterday.
Meanwhile, all lawyers of a Kanpur court today went on a strike and also blocked the Ballohar-Kannauj highway.