KOTTAYAM: A woman riding pillion on a bike with her son died due to severe head injuries as she fell off the bike after her sari got entangled in the moving bike’s rear wheel’s chain when she was trying to tie her mask. She has been identified as Vatsamma (60), wife of K M Ayyappan of Ponganthanam. The incident happened at Vakathanam in Kottayam yesterday. The accident happened when she was returning home from the government hospital with her son. Though she was immediately taken to the medical college hospital, her life could not be saved. She will be cremated today. Ajesh, Ajitha and Anil are her children.