To reduce network delay and bandwidth gain in the MANETs environments using cache updating process. In cache updating, to update the cache nodes have to use pull-based algorithm. Whereas, the pull-based algorithm, the cache ask to the data source for updating the data item into the cache. In this algorithm implements prefetching and piggybacks the data item from the data source. In this paper the authors proposed decentralized distributed cache updating process, where the query directory is fixed based on the storage capacity.