This study is an attempt to generate genetic database for three endogamous populations of Sikh population (Arora, Jat and Ramgariha) of Central India. The analysis of eight autosomal STR loci (D16S539, D7S820, D13S317, FGA, CSF1PO, D21S11, D18S51, and D2S1338) was done in 140 unrelated Sikh individuals. In all the three studied populations, all loci were in Hardy -Weinberg equilibrium except at locus FGA in Ramgariha Sikh and locus D16S539 in Arora Sikh. An analysis of molecular variance (AMOVA) showed 1% variation among the three studied populations. The close genetic relationship between Jat and Ramgariha Sikh population were confirmed in the MDS Plot generated from the pairwise genetic distances.