The Store & Forward (S&F) uplink is in the VHF Band and the downlink is in the UHF band. There are two S&F ground stations, one at the MIT campus of Anna University, Chennai and the other at Pune University.
Status : In response to the Telecommand S&F Tx ON the S&F transmitter on-board gets switched on. However, reception of broadcast data frames at Ground Station is intermittent and very few attempts of two-way communication of Text Messages were successful. Experimentation is still on.