A 17-year-old boy riding a two-wheeler hit another bike in Tondiarpet, in which his mother, who was riding pillion, died on Tuesday night.Mariammal, 40, her son and the rider of the other two-wheeler, Senthilkumar, 45, were taken to Government Stanley Hospital by passerby after the accident on Vallalar Street in Tondiarpet.Mariammal was declared dead on arrival, while the two injured persons are undergoing treatment. Police said the boy, a Class 12 student, was underage but his mother had allowed him to ride the two-wheeler.Washermenpet Traffic Investigation Wing registered a case and are investigating. Published - September 10, 2026 12:54 am IST