Chandigarh, May 13 -- A day after a police constable cycling home from duty was killed by a speeding BMW on the road dividing Sector 9/10, Chandigarh police arrested a 26-year-old management graduate in the case. The accused, identified as Ishan Shanker Roy, the son of a retired colonel and a resident of Sector 26, Panchkula, was allegedly performing dangerous stunts and racing with another BMW, when he hit the constable fatally. He was arrested on Monday after closed-circuit television (CCTV) camera footage and forensic analysis confirmed his involvement. An eyewitness, Ashish Chaudhary, 24, said, "I was driving through Sector 10 and had reached the small chowk on the road dividing Sector 9 and 10 around 6.45 pm when I noticed two cars speeding recklessly from the high court side. The front vehicle was a sky-blue BMW M2, and the one behind it was a dark grey BMW Series 3. As they approached the chowk, the BMW Series 3 struck a cyclist who was crossing to the Sector 10 side, from the Sector 9 cycle track." "The cyclist had nearly completed crossing when the speeding BMW hit him from the right side. The impact was so severe that the cyclist was flung a considerable distance, and his bicycle got trapped under the car, which dragged it for several metres," he added. He noted the registration number of the offending car as T0125CH1765A - and identified the driver, later confirmed as Ishan Shanker Roy, before the accused sped away. The injured cyclist was later identified as constable Anand Dev, who succumbed to his injuries at Government Multi Specialty Hospital, Sector-16. Chaudhary said, "The BMW driver did not blow the horn or attempt to slow down. He hit the cyclist at full speed and fled with the cycle stuck under the vehicle for some distance. I immediately called 112, and the victim was rushed to GMSH-16 by the PCR." Police had initially registered the case under Sections 281 (rash driving) and 106(1) (death by negligence) of the Bharatiya Nyaya Sanhita, 2023, at the Sector-3 police station. After forensic inspection of the vehicle, detailed site analysis, and CCTV verification, an additional charge under Section 105 (culpable homicide not amounting to murder) of BNS was added. The vehicle has been seized for mechanical examination. Police said they are also verifying whether the accused was under the influence at the time of the accident. According to officials, the same BMW had been flagged earlier for loud exhaust noise near police headquarters minutes before the accident. Several police personnel had reportedly heard the sound of the revving vehicle multiple times before the accident. Notably, the stretch had recently got CCTV cameras to monitor speeding....