The study attempts to provide some fresh evidences, on the way in which ownership concentration by promoters influences firm value by re-examining two popularly known hypotheses, namely, monitoring and expropriation attached with the concept of ownership concentration. It uses a set of strongly balanced panel data consisting 91 manufacturing firms listed on Bombay Stock Exchange of India from 2009 to 2016 and employs fixed effect regression model under panel data analysis. The study documents a positive effect of concentrated promoters’ ownership on the value of Indian manufacturing firms and endorses the monitoring role played by large owners. It also accepts the possibility of co-existence of both monitoring and expropriation effects, with the former having a dominating influence, as the overall impact of large promoters is a trade-off between the benefits of active monitoring and cost of expropriation. The study is expected to have important implications in strategy making in the domain of corporate finance and governance and to act as a piece of reliable empirical evidence for the academicians and business analysts of this domain.