PATNA, Dec. 5 -- Acting on a tip-off, Patna police on Wednesday night arrested a man with narcotics and recovered Rs.1.80 lakh in cash from his possession in the Marachi area under Marachi police station, officials said. He was sent to jail after an FIR was registered in this connection. The arrested person has been identified as Amit Kumar, son of Umashankar Singh, a resident of Marachi Tajpurdih under Marachi police station in Patna district. Police also recovered a black electronic weighing machine of Nivayo company....