Concrete is one of the majorly used substance in construction. Cement is primarily used as binder in concrete. Cement consumes more water and also contributes towards carbon emission. In order to limit this effect, usage of geopolymer concrete will be the alternative to conventional cement concrete. Geopolymer concrete uses industrial waste such as flyash and ground granulated blast furnace slag as binder and are activated by using Alkali Activated Solutions such as sodium hydroxide and sodium silicate. Unlike conventional cement concrete, geopolymer concrete does not require water curing instead ambient curing is required for geopolymer concrete. Prestressed geopolymer concrete is a type of concrete that has gained attention due to its superior strength and durability compared to traditional concrete. The use of prestressing techniques in geopolymer concrete further enhances its properties. This paper discusses about flexural behaviour of prestressed concrete beam in various prestressing force in various tendon profiles. The geopolymer mix proportion was adopted with fly ash to GGBS ratio (70:30, 60:40, 50:50) with alkaline activator solution of sodium hydroxide and sodium silicate as 0.55 and 0.5 is used to achieve the M40 grade. Three flexural beams of non-prestressed geopolymer beam, prestressed geopolymer beam of eccentricity 20 and 40 mm are designed and tested to find the effect of prestressing in geopolymer concrete. The beams feature property such as load versus deflection, moment versus tension and compression and moment versus end rotation are analyzed and it has been seen that the load carrying capacity of prestressed geopolymer concrete of 20 mm eccentricity has increased by 42% and increased by 28% in case of 40 mm eccentricity in comparison to non prestressed geopolymer concrete. Moreover, the deflection of the 20 mm eccentricity prestressed beam and 40 mm eccentricity beam are 40 and 10% more than that of non-prestressed beam.