KALYAN: Reportedly upset over his girlfriend refusing to speak to him on the phone, a 23-year-old Kalyan man allegedly hurled stones at several coaches of a passing CSMT-Shirdi Vande Bharat Express between Thakurli and Kalyan stations on Friday. He was later arrested by Kalyan RPF and remanded in magisterial custody.The attack damaged the windowpanes of four coaches. Railway officials said no passenger was injured, although it caused panic among travellers. The suspect, Sunny Kamble, was detained in Kalyan after a team of Kalyan RPF and crime intelligence branch found his movement suspicious. During questioning, he admitted to pelting the train with stones. Officials said he claimed he had consumed drugs earlier in the day and decided to loiter near railway tracks. RPF invoked charges of endangering passenger safety and trespassing on railway premises under Railways Act.