An expost-facto study to know the use of communication channels in transfer of Agricultural messages by Extension personnel in different levels under T & V system was conducted in Ranga reddy district of Andhra Pradesh. The ADAs, AEOs and VEOs constituted the sample. The study revealed that ADA and AEO circle used the channels like group meetings, Farm and home visits, method and result demonstration, campaigns and field days and the channels used by VEOs were Farm and home visits, group meetings and method and result demonstration.