In India, barnyard millet holds a significant importance, being cultivated as a climate resilient, dry land crop across a wide range of environmental conditions in poor and marginal soil under rainfed conditions for its highly nutritious grains as well as fodder, due to its diverse adaptive mechanisms. Availability of high yielding improved varieties with stable genetic resistance towards important endemic diseases are the utmost need in hills of Uttarakhand under the present scenario of climate change. Germplasm is an essential reservoir of favourable alleles for agronomic and quality traits. The detailed characterization will serve the requirement of long-term goals in plant breeding viz., climate change, duplicity of germplasm, depleting natural resources, trait specific resistant donors, and available genetic resources adapted to present climatic conditions. Therefore, the documentation of available germplasm is important to serve the near future goals of crop breeding programme. Considering the significance of the crop, one study was conducted using one hundred fifty-four germplasm lines of barnyard millet including four checks viz., PRJ-1, VL-172, VL-207 and DHBM-93-3 and those were planted in an augmented design. During the study, observations were recorded at different growth stages of barnyard millet for different visually assessed morphological qualitative traits, agro-morphometric quantitate traits, genetic diversity, and disease resistance. During the investigation, it was observed that a significant difference was present among the studied germplasm. The quantitative traits showed more than 75% heritability along with moderate to high genetic advance except days to maturity. The values for genotypic and phenotypic coefficient of variation were almost similar indicating that there was a less influence of environmental factors on the characters studied. From the present investigation, two germplasm i.e. BAR-1403 and BAR-1186 were identified as potential germplasm for grain yield and fodder yield having resistance for all endemic diseases of barnyard millet. These two germplasm lines from the bulk are of tremendous value and hold potential to be further used in the breeding programme to develop high yielding disease resistant improved varieties of barnyard millet.