The relation between length-weight and relative condition factor was estimated for asian catfish, Clarias batrachus (Linnaeus, 1758) which is locally called mogri fish. Total 150 samples were collected from Gaurmati fish farm, Kawardha, Chhattisgarh by drag net during April 2012 to March 2013. The collected samples were having total length 10.0 - 28.0 cm and weight 11 – 119 gram. The average allometric coefficient ‘b’ of the LWR was found close to the isometric value (b = 3.19). The result also indicated that there is direct relationship with length of organism and relative condition factor (Kn). Maximum Kn value found in the month of September (1.05) followed by October (1.04), August (1.04) and July (1.03). The mean values of relative condition factor (Kn) computed for all the specimens of Clarias batrachus was 1.005 ± 0.003. The increase in value of Kn indicate good water quality and healthy organism. The length-weight relationship of Clarias batrachus shown by equation: Log W= -2.34 + 3.19 Log L.

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