TITLE: GCN CIRCULAR NUMBER: 16815 SUBJECT: Possible radio detection of GRB 140903A with the GMRT DATE: 14/09/12 08:44:42 GMT FROM: Poonam Chandra at TIFR A. J. Nayana (NCRA-TIFR) and Poonam Chandra (NCRA-TIFR) report: We carried out the Giant Metrewave Radio Telescope (GMRT) observations of GRB 1400903A (Cummings et al. GCN 16763) in the 1390 MHz band on 2014 September 11.05 UT. We detect a 3.1-sigma source at the GRB position (Cenko et al. 16770) with a flux density of 102+/-33 uJy. This is most likely the radio afterglow of GRB 140903A. We are carrying out further observations to confirm this detection. We thank GMRT staff for making these observations possible.