No. 2A, Abeyrathna Mawatha, Boralesgamuwa, Sri Lanka.
President-IDTSL 2012-2014 Membership No.-F/0027 Address– C/O Shanthi Gamage , D 52/55 , Maligawatta Flats, Colombo 10 Office Address– Mapping Section National Water Supply & Drainage Board,Telawala Road, Ratmalana. Tel.- 0714818572