Background: Cervical intraepithelial neoplasia is a premalignant cervical disease which may lead to cervical cancer. The screening of the cervical cancer includes the screening of cervical cytology as well as testing for oncogenic human papilloma viruses (HPV) since most of the precursor lesions appear in the women of child bearing age. The purpose of the present study was to evaluate the incidence of cervical intraepithelial neoplasia in antenatal women by screening with papanicolaou smear.Methods: Macroscopic abnormalities such as cervicitis, polyps, erosions, nabothian cysts, hypertrophied cervix, growths and ulcers were noted. A cervical smear using Ayre’s spatula was taken from the ecto cervix and spread on to a labeled slide and immediately fixed.Results: Majority of the women were in the age group of 20-30 years in the study group. The overall mean age of the women in the study was around 25 years. The mean age at the time of menarche was around 14 years and at the time of marriage was approximately 22 years. On Pap smear, 55.2% of the 1000 cases were normal, with inflammation seen in 408 (40.8%) of the cases. 20 (2%) of the patients in our study had low grade squamous intra epithelial lesion, while 7 patients (0.2%) had high grade squamous intra epithelial lesion with two cases showing CIN II grading and 5 with CIN I.Conclusions: An early detection of the same can lead to a proper and efficient treatment.