Exploring Project Complexity Factors: Case Study of Track-Doubling Line Railway Projects in India: RAILWAY PROJECT COMPLEXITY FACTORS OF TRACK-DOUBLING IN INDIA. Journal of Scientific & Industrial Research (JSIR), [S. l.], v. 84, n. 03, p. 336–346, 2025. DOI: 10.56042/jsir.v84i03.15432. Disponível em: https://or.niscpr.res.in/index.php/JSIR/article/view/15432. Acesso em: 13 may. 2026.