This study focuses on the changes taking place in the professional environment of the in-service teachers after attending in-service teacher training programmes. A sample of 60 in-service teachers of upper primary schools was selected from four districts of Himachal Pradesh viz. Shimla, Solan, Bilaspur and Kinnaur and survey method of research was used. It has been found in this study that after attending in-service teacher training programmes the in-service teachers have made changes in their professional environment and they apply their knowledge gained in the training programmes in the real class room situations. The current study is of utmost significance in terms of implementation of training in the real professional environmentof in-service teachers.