## 4 Conclusions
In this study, we had observed data of daily streamflow and sediment concentration at two outlet points, one for each river basin, specifically at Srikakulam over the Nagavali watershed and at Kashinagar over the Vamsadhara watershed, where we performed calibration and validation [47]. However, multisite calibration and validation over the watersheds was not performed. The reservoir emergency and principal spillway volumes and surface area details which were imported into the model. The complete details such as reservoir inflow and outflows were not available, and uncertainties may occur in the model as a result. Additionally, the CMIP6 models' precipitation and temperature data may have some bias as we considered individual model values. In the present study, during bias correction, we considered the ensemble of multiple models. However, it is advisable to perform bias correction of individual models before considering the models for ensemble. Moreover, the changes in land use and land cover in the future are assumed to remain unchanged. This assumption could have added some uncertainty in the model results. Furthermore, it is important to prioritize the management of critical sediment source areas in order to improve soil water conservation measures in these river basins. This research methodology can be extended to other parts of the world with similar river basin characteristics. Conceptualization, N.R.N. and V.R.K. ; methodology, VS., V.R.K. and N.R.N. ; software, R.S. and V.R.K. ; validation, R.S., V.S. and V.R.K. ; formal analysis, N.R.N. and G.V.R. ; investigation, N.R.N. ; resources, V.R.K. ; data curation, N.R.N. ; writing--original draft preparation, N.R.N. ; writing--review and editing, V.S. and V.R.K. ; visualization, N.R.N. ; supervision, V.R.K., V.S. and R.S. ; project administration, V.R.K. ; funding acquisition, V.R.K. All authors have read and agreed to the published version of the manuscript. The research described in this paper is carried out with fund by Ministry of Human Resource Development (MHRD), Government of India under Scheme for Promotion of Academic and Research Collaboration (SPARC) through project number P270. The corresponding author's effort was funded in part by the Virginia Agricultural Experiment Station (Blacksburg) and through the Hatch Program of the National Institute of Food and Agriculture at the United States Department of Agriculture (Washington, DC, USA) and as a Fulbright-Nehru senior scholar funded by the United States India Educational Foundation. Not applicable. **Informed Consent Statement:** The submitted work is original and it not published elsewhere in any form or language (partially or in full). It is not submitted to any other journal for simultaneous consideration. Results are presented clearly, honestly, and without fabrication, falsification or inappropriate data manipulation. Proper acknowledgements to other works are given wherever it is appropriate. **Data Availability Statement:** Data available from the corresponding author upon request. **Conflicts of Interest:** The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.