Cryptosporidium spp. infection was recorded in kids of Sikar district of Rajasthan with an overall prevalence of 38.22%. The infection was higher in diarrhoeic (43.47%) than non-diarrhoeic ones (30.26%). Also the infection rate was higher in kids in the age group of one day to <1 month (55.48%) as compared to 26.43% in the elder age group (>1 to 6 months). Seasonal prevalence was higher in post-monsoon (52.46%), followed by 40.45, 27.64 and 25% in winter, monsoon and pre-monsoon respectively. Association between Cryptosporidial infection and diarrhoea was more prevalent in kids of 1 day to <1 month of age (66.27%) than kids of > 1 month of age group (29.86%).