Morphological features of bones depend on the nutritional, geographic, racial and occupational factors, hence vary in different regions. Sacrum is usually being last available skeletal remain, proves important in sexing and forensic identification. Sacral Index is considered to be most important and widely used derived indicator for sexing the sacra. Study was conducted on 282 dry human sacra to derive sacral index and demarcation point for identification of sex of dry human sacra in Madhya Pradesh region. Ventral Straight length and maximum transverse width were measured using digital calipers and were statistically analyzed to derive Sacral index and demarking point.  Mean sacral index of male and female sacra was 95.08 and 107.86 with demarking value of <74.15 and >118.87 respectively. This study may act as prelude of comparative morphometric studies in future and useful for anatomists, anthropologists, forensic and medicolegal experts.