Context : Hierarchal models of large-scale structure ( LSS ) formation predict that galaxy clusters grow via gravitational infall and mergers of smaller subclusters and galaxy groups .
Diffuse radio emission , in the form of radio halos and relics , is found in clusters undergoing a merger , indicating that shocks or turbulence associated with the merger are capable of accelerating electrons to highly relativistic energies .
Double relics are a rare class of radio sources found in the periphery of clusters , with the two components located symmetrically on the opposite sides of the cluster center .
These relics are important probes of the cluster periphery as ( i ) they provide an estimate of the magnetic field strength , and ( ii ) together with detailed modeling can be used to derive information about the merger geometry , mass , and timescale .
Observations of these double relics can thus be used to test the framework of LSS formation .
Here we report on radio observations of ZwCl~2341.1+0000 , a complex merging structure of galaxies located at z = 0.27 , using Giant Metrewave Radio Telescope ( GMRT ) observations .

Aims : The main aim of the observations is to study the nature of the diffuse radio emission in the galaxy cluster ZwCl~2341.1+0000 .

Methods : We carried out GMRT 610 , 241 , and 157 MHz continuum observations of ZwCl~2341.1+0000 .
The radio observations are combined with X-ray and optical data of the cluster .

Results : The GMRT observations show a double peripheral radio relic in the cluster ZwCl~2341.1+0000 .
The spectral index is -0.49 \pm 0.18 for the northern relic and -0.76 \pm 0.17 for the southern relic .
We have derived values of 0.48 - 0.93 \mu Gauss for the equipartition magnetic field strength .
The relics are probably associated with outward traveling merger shock waves .

Conclusions :