We present the H i 21 cm spectral line and continuum observations of the Galactic supernova remnant candidate G351.7–1.2 using the upgraded Giant Metrewave Radio Telescope . Strong absorption features are observed towards the H ii regions in the star forming complex associated with G351.7–1.2 . Along with H i emission towards the outer periphery of the supernova remnant shell , we distinguish a high velocity jet-like feature in the velocity range +40 km s ^ { -1 } to +52 km s ^ { -1 } in H i . This unusual and highly collimated feature , with a projected length of \sim 7 pc and an opening angle of 14.4 ^ { \circ } , is located towards the interior of the radio shell . This is the first report of a such a well collimated H i jet-like emission . The peculiar location and the detection of a \gamma -ray source towards the central peak of this HI jet suggests its plausible association with the supernova remnant candidate .