We present low frequency wide band observations ( 300 - 500 MHz ) of the star forming complex G351.7–1.2 using upgraded Giant Metrewave Radio Telescope ( uGMRT ) , India .
Combining this with the optical , infrared and submillimeter data , we analyse the large scale diffuse radio emission associated with the region that exhibits a broken shell morphology .
The spectral index of the emission in the shell is -0.8 , indicating non-thermal emission .
H \alpha emission that mimics the morphology of the radio shell on a smaller scale is also detected here .
Based on the non-thermal emission from the radio shell and the presence of its optical counterpart , we classify G351.7–1.2 as a candidate SNR .
A \gamma -ray source detected by Fermi LAT ( 1FGLJ1729.1–3641c ) is located towards the south-west of the radio shell and could have a possible origin in the interaction between high velocity particles from the SNR and the ambient molecular cloud .