Limnological studies involving different approaches and varied objectives for determining trophic status and potential fish yield of the reservoir by important physico-chemical and biological parameters as they play a vital role in enhancing fish production, besides better fisheries management. Sardar Sarovar Reservoir (21.827675 N, 73.772147 E) in India, occupies an area of 37,030 ha with a linear stretch of 214 km of water at an average width of 1.77 km. The Full Reservoir Level (FRL) of the dam is 138.68 m. With the increase of 16.79 m of the FRL (from 121.89 m to 138.68 m) on 17th June 2017, vast area of the catchment was submerged thereby enhancing the fertility due to "Trophic Burst". During April 2018 to March 2019, reservoir has been studied for assessment of the trophic status and fish yield potential based on hydro-biological and morphometric features. Carlson Trophic State Index (CTSI) has been used for evaluating the trophic status of the reservoir. During the study period, it was observed that Madhya Pradesh part of the reservoir was classified as Oligotrophic to Eutrophic in nature (CTSI: 33.23 - 52.76), whereas Gujarat part of the reservoir was classified as Mesotrophic to Eutrophic nature (CTSI: 48.82- 65.63). Mean value (178.2 kg/ha/year) of six fish production models viz., primary productivity model (Waldichuk, 1956), Trophodynamic model (Melack, 1976), Toews and Griffith model (1979), Ramakrishniah (1990) MEI and MDI model and Crul model (1992), was considered as fish production potential of Sardar Sarovar Reservoir. It is well known that the actual fish production from a water body is usually lesser than its potential yield. Therefore, estimation of potential fish yield is useful to decide the regulations of the fishing effort as well as the rate of fish stocking in the reservoir to improve the fish yield in targeting potential.