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Fast Radio Bursts (FRBs) are bright, extragalactic radio pulses whose originsare still unknown. Until recently, most FRBs have been detected at frequenciesgreater than 1 GHz with a few exceptions at 800 MHz. The recent discoveries ofFRBs at 400 MHz from the Canadian Hydrogen Intensity Mapping Experiment (CHIME)telescope has opened up possibilities for new insights about the progenitorswhile many other low frequency surveys in the past have failed to find anyFRBs. Here, we present results from a FRB survey recently conducted at theJodrell Bank Observatory at 332 MHz with the 76-m Lovell telescope for a totalof 58 days. We did not detect any FRBs in the survey and report a 90$\%$ upperlimit of 5500 FRBs per day per sky for a Euclidean Universe above a fluencethreshold of 46 Jy ms. We discuss the possibility of absorption as the maincause of non-detections in low frequency (< 800 MHz) searches and invokedifferent absorption models to explain the same. We find that Induced ComptonScattering alone cannot account for absorption of radio emission and that oursimulations favour a combination of Induced Compton Scattering and Free-FreeAbsorption to explain the non-detections. For a free-free absorption scenario,our constraints on the electron density are consistent with those expected inthe post-shock region of the ionized ejecta in Super-Luminous SuperNovae(SLSNe).

Limits on Absorption from a 332-MHz survey for Fast Radio Bursts