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India is bestowed with immense cattle biodiversity with 50 registered breeds. However, the majority (59.3%) is yet not characterized. Identification and characterization are the gateways to the management of prized indigenous resources. Present research described a unique cattle population of Jharkhand state, managed under a traditional low-input, low-output system. It was characterized by morphological traits, performance parameters, and management practices. Animals have the characteristic pre-scapular location of the hump. Genetic variation within this population and its differentiation with the six closely distributed cattle breeds were evaluated using FAO recommended microsatellite markers. Jharkhandi cattle have substantial genetic variation based on gene diversity (>0.6) and the average number of alleles per locus (>8). The population did not suffer from a genetic bottleneck in the recent past. Pairwise Nei's genetic distance, phylogenetic relationship, population differentiation, and the correct assignment of all the animals to self group substantiated its separate genetic identity. Since gene flow (Nm = 2.8–7.32) was identified and admixture was indicated by the Bayesian analysis there is a pressing need for scientific management of this population. Results endow authorities with critical information for registering a new Indian cattle breed (Medini) that contributes to the food security, livelihood, and economic sustainability of rural tribal households. [ABSTRACT FROM AUTHOR]