S. Sangeetha, K. Madane and J. Muralidaran 2021. Building an Efficient Portfolio Using Sharpe’s Single Index Model(An Empirical Study With Reference to Nifty 50). Asia-Pacific Journal of Management and Technology (AJMT). 2, 2 (Oct. 2021), 11-21. DOI:https://doi.org/10.46977/apjmt.2021v02i02.002.