Olympic-bound boxer Amit Panghal, who recently secured a silver medal at the World Championships, has expressed his preference for training at the Sports Authority of India's high-altitude training centre in Shillaru, Himachal Pradesh, over-preparing abroad for the upcoming Paris Games. Panghal, hailing from Rohtak, believes that the high-altitude environment of the Netaji Subhash High Altitude Training Centre in Shillaru will …