In this study, we examined the empirical cointegration, long and short-run dynamics and relationships between technological innovation, infrastructure and industrial growth in Bangladesh over the period of 1974-2016. The ARDL Bounds Test methodology and Granger Causality test in an augmented VECM framework were applied. The ARDL bounds tests and additional cross-checking tests, undoubtedly confirmed long run as well as short-run cointegration between the three variables in Bangladesh. The obtained results expressed that infrastructure has a positive impact on the industrial growth but technological innovation has a negative impact on it in the long run. In the short run, infrastructure and technological innovation both have a positive and significant impact on industrial growth. The VECM Granger causality test reveals the existence of a bi-directional causality running between Industrial growth and infrastructure; and infrastructure and technological innovation. On the other hand, unidirectional causality is running from industrial growth to technological innovation. The findings of the Granger causality test supports the results obtained in the ARDL approach in our study. The results obtained from this empirical analysis have an important policy implication for a developing country like Bangladesh as well as other developing countries. 1. INTRODUCTION The founding partner, Roger McNamee, of the Venture Capital Firm Elevation Partners of US, commented that "We need to stop thinking about infrastructure as an economic stimulant and start thinking about it as a strategy. Economic stimulants produce Bridges to Nowhere. Strategic investment in infrastructure produces a foundation for long-term growth". In the same paper, investigation conducted on "Industry and Infrastructure" of India, it was revealed that vital factors for economic growth and development are to promote inclusive employment-intensive industry and to build resilient infrastructure (Hogan and McNamee, n.d). So there is a close relationship between infrastructure and industrial development or Economic development. All the activities of human being are somehow related to economic development and industrial development is one of the major components of it Rahman and Kashem (2017). From the economic growth point of view, the world has achieved a significant development in different kinds of infrastructure as the roads, railroads, airlines, giant bridges, high rise skyscrapers, tunnels, and industries etc. According to Ayeche et al. (2016) the global economic system has Asian Economic and Financial Review