CHENNAI: Chennai Division of Southern Railway has made changes in train operation in Beach-Chengalpattu section, to facilitate maintenance between Kattangulattur and Guduvancheri stations. Beach - Chengalpattu special leaving Beach at 10.10 am, 10.56 am and 11.50 am are partially cancelled between Guduvancheri and Chengalpattu on September 15, 17, 20, 22, 24 and 27. Similarly, Chengalpattu-Beach special leaving at 11.30 am, 12.20 pm and 1 pm will run from Guduvancheri on the same dates. Similarly, on those days, the Tirumalpur-Beach special leaving at 10.40 am has been cancelled. Instead, one passenger special will be operated in the route, leaving Tirumalpur at 12 pm, said a statement.