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During course of study on virla reservoir West Nimar (Kargone) M.P., India,  total 29 species of fish biodiversity  were recorded  these  belong  6  orders,  IO  families  and 16  genera were observed.  On the basis of economic importance fishes weredivided into three major groups viz.  catfish (Mystus seenghala, Mystus  tengara,  Wallago  attu and Ompok bimaculattus), major carp (Cat/a cat/a,  Labeo rohita and Cirrhinus mrigala) and miscellaneous (Channa sps., Mastacembelus sps. and Notopterus  notoptereus). The water  body was divided  into  three  zones  viz.  upstream  zone,  reservoir  zone  and  downstream zone  for fish  catch.  Tha  total  annual  fish catch  computed  in  this water  body was 2465.40  kg.  and 2576.40  kg.  during  the  2001-02  and 2002-03  respectively.  The minimum  catch  were  observed  in August while maximum  in  May. The percentage  composition  of major carp shows  decline trend and catfishes  shows  increasing trend  during  two years study time.  Catch  per unit effort  (CPUE) ranged between  0.015  to  0.191  kg/  hrs.  The water  level  fluctuations  and  fish  production  show  inverse relationship.