Three field and one pot experiments were conducted to study the relative stability of harvest index (HI) and partitioning efficiency in finger millet genotypes. Results revealed that, biomass and grain yield were increased with increased level of fertilizer application upto 60 kg ha-1 N, 60 kg ha-1, P, 40:30 kg ha-1 N & P in field experiments and NPK even upto 160:80:80 kg ha-1 in pot experiment. Harvest index remained stable across the nutrient levels and also between high and low HI types.