Bismi, A, and K Devanadhen. “A Comparative Study on Risk and Return Analysis of Sectoral Indices in the National Stock Exchange of India”. Sakha: Multidisciplinary Journal of Science, Art & Technology, vol. 1, no. 4, Dec. 2025, pp. 67-77, https://doi.org/10.66219/sakha.multi.v1.i4.1024.