SURAT: A dispute over ending a partnership in a jointly owned sewing unit between a man and his nephew took a grisly turn when the nephew was brutally murdered — his body was allegedly hacked into five pieces, stuffed into a bag, and dumped into a rivulet in the Udhna area.The 25-year-old, Mohammed Amir Alam, had been missing since Oct 6, from the sewing unit in which he and his maternal uncle Mohammed Iftikhar Wajid Ali were partners. Both are from the Barari block of Bihar’s Katihar district and settled in Surat for many years.Police began investigations after Alam’s brother Parvez (20) lodged a missing persons report in the Udhna police station on Friday as his phone was switched off for four days.Initially, the brothers inquired with their maternal uncle about Alam’s whereabouts. However, he curtly told them that Alam had gone out of town and instructed them not to disturb him further.“We questioned around 15 people working in the unit and found Ali’s behaviour suspicious. On grilling, he broke down and confessed to brutally killing him . We have detained the accused,” a police officer said.During the investigation, it was revealed that the sewing unit had 30 machines, which were bought in equal partnership shares. Ali wanted to set up his separate unit and demanded his 15 machines. However, Alam reportedly refused to part ways and give up the machines. This did not go down well with Ali, who decided to murder him.On the morning of Oct 6, he repeatedly struck him on the head with a hammer and then chopped his body into pieces.The police have started searching for the body pieces with the help of the fire brigade team.