The population control is essential to check the inbreeding and ensure future healthy progeny, to avoid the overcrowding and to cater the quality upkeep and health care services to captive fauna. The zoo management has undertaken the task of population control from the year 2008 and successfully neutered the male individuals of Black buck, Nilgai,Spotted deer and sambar by performing vasectomy using open method. This has enabled the management to maintain the animal collection as per the requisite standards.