Much of the evolution of galaxies takes place in groups where feedback has the greatest impact on galaxy formation .
By using an optically selected , statistically complete sample of 53 nearby groups ( CLoGS ) , observed in Radio ( GMRT ) and in X-rays ( Chandra & XMM-Newton ) , we aim to characterize the radio-AGN population in groups and examine their impact on the intra-group gas and member galaxies .
The sensitivity to older electron populations at 240 MHz and the resolution of 610 MHz is the key to identify past and current AGN activity .
Here we will present first results from three different galaxy groups analysed so far .
We report an age of \sim 18 Myr for the radio source 3C270 in NGC 4261 implying that the expansion was supersonic over a large fraction of its lifetime .
In NGC 1060 we detect a small-scale ( 20 ’ ’ /7.4 kpc ) jet source with the spectral index of \alpha _ { 240 } ^ { 610 } =0.9 indicating a remnant of an old outburst .
Lastly in NGC 5982 the 610 & 235 MHz observations find a radio point source in the central AGN with no evidence of jets or lobes and diffuse emission from the disks ( star formation ) .