Guwahati, June 26: St. Stephen's School, Guwahati has been awarded the Intertiol School Award (ISA) by the British Council for the session 2017-2020. The ISA programme was carried out in the school under the leadership of Mr. Jacob Lais, Director, Mrs. Sudipta Bose, Vice Principal and Miss Olivia Marchand, Teacher and Intertiol Coorditor, a press release said.