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MAI, Ground water or Reservoir water index are important. NDVI is less effective when

               the  canopy  coverage  is  low.  In  such  situation  NDWI,  a  surface  wetness  indicator  is
               preferred to NDVI.

               States  should  declare  Kharif  drought  by  30  October  and  Rabi  drought  by  31  March,
               every year.




































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