The district is situated between 250 38’ & 260 58’ North latitude and 730 54’ & 750 22’ East longitude covering geographical area of 8,481 sq km. Name of Ajmer is derived from Ajeymeru (the invincible hill). Ajmer is one of the Division which is further sub-divided into 4 sub-divisions namely Ajmer, Beawar, Kekri & Kishangarh and comprises of 6 tehsils & 8 blocks. Total number of villages in the district is 1022 (2001 census). Rural & Urban population of the district is 13,06,398 & 8,74,128 respectively. Decennial population growth rate of the district is 26.09% since 1991. The district is known for Khwaja Moinuddhin Chisti’s Dargah and religious Pushkar town, where temple of Lord Bhrama, is situated. Systematic Hydrogeological survey in the district was carried out by Central Ground Water Board from 1970 to 1980. Reappraisal hydroeological survey of entire district was carried out during 2004-05. Under exploratory programme 45 exploratory boreholes, 2 observation boreholes and 1 slim hole have been drilled. Since 1969, monitoring of water level is being carried out four times a year from 38 National Hydrograph Network Stations. Mean annual rainfall (1987-2006) of the district is 453.2 mm whereas normal rainfall (1901-70) is lower than average rainfall and placed at 433.8. Almost 95% of the total annual rainfall is received during the southwest monsoon, which enters the district in the last week of June and withdraws in the middle of September. Probability of average annual rainfall exceeding 300 mm is only 90%, except at Mangliawas. However, there is 10% probability that the average rainfall exceed 600 mm. Drought analysis based on agriculture criteria indicates that the district is prone to mild and normal type of droughts. Severe and very severe type of drought is very rare and occurred only twice during 1987 & 2002 (Srinagar); 1977 & 1987 (Todgarh); & 1991 & 1993 (Vijaynagar). January is the coldest month with mean maximum and minimum temperatures being lowest at 22.70 C & 7.60 C. Temperature in summer month, June, reaches up to 39.50 C. There is drop in temperature due to onset of monsoon and rises again in the month of September. Atmosphere is generally dry except during the monsoon period. The humidity is highest in August with mean daily relative humidity 80%. The annual potential evapotranspiration in the district is 1565.6 mm and is the highest in the month of May (243 mm).