Background: Determination of sex from a small fragment of skeletal remains of human has been frequently a challenge with which a forensic expert comes across in his day to day life. Because of showing sexual dimorphism, hip bone remains to be a favourable part of skeleton for this purpose. Since long it has been proven that hip bone shows racial differences also. Materials and Methods: This study was conducted on a set of 41 hip bones, of which 24 belonged to male and 17 belonged to a female. Length of pubic and ischial part was measured and then iscio­pubic index was calculated with the help of formula given by Washburn (1949). Results: Ischio­ Pubic Index was found to be 76.72 ± 0.13(Range 65.71­96.08) in males & 85.87 ± 2.40 (Range 73.48­98.42) in females. Ischiopubic index remained in between 73.34 to 80.10 in male and between 78.27 and 93.47 in female with confidence limit of 99%. Conclusion: Our study results and it’s comparison with results of other workers shows that hip bone not shows only dimorphism but it’s metric values are population specific also. 

Keywords: Hip Bone; Sex Determination; Pubis; Ischium; Ischio­Pubic Index.