THIRUVANANTHAPURAM: Sajan Prakash, the poster boy of the 35th National Games, has added another feather in his cap. He won the trophy for the best swimmer at the All-India Railway Aquatic Championship, which concluded the other day here. South Western Railway emerged the overall champion. The valedictory function was held at LNCPE, Karyavattom. Thiruvananthapuram Divisional Railway Manager Sunil Bajpai was the chief guest.