Microalgal biomass production using wastewater (WW) is a sustainable approach for economically viable biorefinery.The present study aims to develop a scalable cultivation strategy using novel microalgae strain Marvania coccoides for biofuels productionThe cultivation strategy based on nutrient supplementation is developed at lab-scale (1 L) and validated at open-raceway pond system (200 L).Nutrient-supplemented wastewater (OWW) showed higher biomass productivity at both lab-scale (87.36 mg.L-1.d-1) and open pond system (133.89 mg.L-1.d-1) as compared to synthetic media.Biodiesel yield of 92.30 % was achieved upon transesterification of lipids from OWW (200 L) medium.Moreover, the residual biomass, i.e., lipid-extracted microalgal (LEM) biomass, yielded in 26.65 % of bio-oil and 56.94 % of biochar upon non-catalytic pyrolysis.Bio-oil and biochar produced were analyzed using element analyzer, gas chromatog.-mass spectrometry (GC-MS), and fourier-transform IR spectroscopy (FTIR).This scalable cultivation strategy for microalgae and biorefinery approach for production of biodiesel, bio-oil and biochar is sustainable solution for managing wastes and generation of biofuels.