We report the discovery of a remnant radio AGN J1615+5452 in the field of ELAIS-N1 .
GMRT continuum observations at 150 , 325 and 610 MHz combined with archival data from the 1.4 GHz NVSS survey were used to derive the radio spectrum of the source .
At a redshift z \sim 0.33 , J1615+5452 has a linear size of \sim 100 kpc and spectral indices ranging between \alpha ^ { 1400 } _ { 610 } < -1.5 and \alpha ^ { 325 } _ { 150 } = -0.61 \pm 0.12 .
While the source has a diffuse radio emission at low frequencies , we do not find evidence of core , jets or hotspots in the 1.4 GHz VLA data of \sim 5 arcsec angular resolution .
Such morphological properties coupled with a curved radio spectrum suggest that the AGN fueling mechanisms undergo a shortage of energy supply which is typical of a dying radio AGN .
This is consistent with the observed steep curvature in the spectrum \Delta \alpha \approx - 1 , the estimated synchrotron age of t _ { s } = 76.0 ^ { +7.4 } _ { -8.7 } Myr and a t _ { off } / t _ { s } ratio of \sim 0.3 .