India is bestowed with huge floodplain wetland resources (5.54 lakh ha) that support rich biodiversity besides providing nutritional and livelihood security to the rural populace. The variability of climate manifested by elevated temperature, erratic and abnormal rainfall, drought etc., have adversely impacted the wetland ecology, biodiversity, fisheries and in turn livelihood of the resource poor fishers. In this context, it is essential to develop and demonstrate suitableadaptation strategies for increasing adaptive capacity of wetland fishers. In the present study, we successfully demonstrated climate resilient adaptation techniques in two floodplain wetlands of West Bengal. A new adaptive strategy i.e. CRPS (Climate Resilient Pen Systems- (100 m2 X 6)) has been installed which has capacity to withstand adverse climatic events. The main objective was conservation of small indigenous fish species besides production of Indian Major Carps in floodplain wetlands. In Mathura wetland, Labeo bata and Systomus sarana registered a weight gain% of 452.28% and 324.9% respectively in 90 days. Adults of G. chapra (avg weight: 9.5g) grew to 14.5 g in 90 days. The young ones of average size 3.8cm and 0.57g were also observed in pens indicating natural spawning success in pen.Among IMCs, Catla catla and Labeo rohita showed maximum weight gain in Bhomra and Mathura wetland respectively. CRPS is found to be a viable option to increase the adaptive capacity of wetland fishers in the changing climate scenario.