Gurugram, Nov. 9 -- A 31-year-old man and his four associates have been arrested for allegedly assaulting his father and holding him hostage to force him to sign blank papers in an attempt to grab his property, police said on Saturday. Investigators identified the victim as Bal Krishan, 54, a resident of Ward 19, Sohna, and the main accused as his son Gopal Kumar. Police said the assault took place after Krishan refused to give Kumar pocket money for his daily expenses owing to his drug addiction and anti-social behaviour. Kumar's associates, identified as Vinod Saini, Pradeep Gurjar, Deepanshu Kumar and Mohammad Abid, were also arrested from various locations in Sohna over the past four days. The incident took place on the morning of October 29, when Krishan was supervising the construction of his new house in Sohna. The suspects fled after the incident, following which Krishan filed a police complaint. City Sohna police station has registered the FIR and further probe is on. Sandeep Turan, spokesperson of Gurugram Police, said, "Further probe is on to determine if more suspects were involved in the case."...