BHUBANESWAR: The Odisha Forest Development Corporation (OFDC) has felled 17,704 trees for facilitating opencast mining at Talabira II and Talabira III coal blocks under Rengali forest range in Odisha’s Sambalpur and Jharsuguda districts.This was informed by Suresh Suman, chief general manager (project head) Neyveli Lignite Corporation (NLC), a government of India’s Navratna company which owns the coal blocks