In this world of rapidly growing techs and steadfast alternatives which rather damage  environment than make it flourishing, we need the actual green alternative which will  efficiently supersede— the intoxication by petro fuels, waste-treatment machinery, green
house effects and many more. This search of alternative has made its way to sleek end   through the cultivation of algae and its benefits. As little amounts will do no good to the  seeking benefits the major ways found by scientists soaring through early methods like dilution isolation method and use of stencil & gelatine to create patterns to more modern  ways of open pond systems to photobioreactors. The review includes various efficient  ways of algal cultivation such as use of photobioreactors, open raceways, two-phase  hybrid systems and 3D triangular systems by discussing its limitations plus advantages.  The photo bioreactors though providing more efficiency than open pond system they still are not much used. The greed for improved systems made discovery of the two-phase  hybrid systems which obliterates disadvantage of both systems which are discussed. Though the thirst of improving led to the more different designs in the way of trials like  3D triangular systems which will be honoured in this review. We also go through a brief glimpse of algae’s role in replacing synthetic plastics with its bioplastic production as it shows very versatile group of polymers and high degradability.