Rainfall data of 10 years of Brahmapuri were analyzed for drought investigation, which may be used for long term planning of irrigation system in the area. During 10 years period, one drought year was experienced which occurred in 1972 in which the total rainfall was 801.9 mm. A comprehensive knowledge of the trend and persistence in rainfall of the area is of great importance because of economic implications of the rain sensitive operations and since it plays vital role of any agricultural and non agricultural programme. If proper and comprehensive study of various rainfall data was analyzed, the severity and reoccurrence of drought can be known before hand thus various measures can be taken to cope up with the problems and drought.