New Delhi, Aug. 9 -- A 55-year-old sanitation worker with the Municipal Corporation of Delhi (MCD) died under mysterious circumstances on Thursday, hours after being taken to Jyoti Nagar police station in northeast Delhi. His family has alleged that he was assaulted by an MCD official and a police constable, causing fatal internal injuries. The deceased, Rishipal, lived with his wife and three children near Apsara Border in Seemapuri and was posted at MCD's Ashok Nagar office near Nand Nagri. According to relatives, a dispute broke out on Thursday morning when Rishipal argued with a sub-inspector-rank MCD official over marking his attendance. The official called the police, and Rishipal was taken to Jyoti Nagar police station around 10.30am...