M&As scenario started changing in India after the introduction of liberalization process in 1991.The policy initiatives of the Government led to a structural transformation in the Indian industries. This industrial transformation has provided a launch pad for the corporate to grow and expand through M&As strategy. Corporate governance broadly refers to a set of practices that are designed to govern the behaviour of corporate enterprises. In the backdrop of several American corporate debacles, corporate governance has been increasingly seen as a means to promote healthier corporate practices and to check the errant enterprises. In this context, M&A serves as a vital instrument of corporate governance to increase corporate efficiency. Corporate governance in the context of a company, deals with laws, procedures, practices and implicit rules that determine a company's ability to take managerial decisions vis-a-vis its stakeholders. In this paper, an attempt has been made to present the relationship between corporate governance and mergers and acquisitions. Further, an exploratory attempt has been made to analyse the impact of M&A on share price bahaviour to identify the important issues, which could improve the corporate governance practices of enterprises. From the literature review, evidence of shareholders gaining positively in case of target firms has been proved at the time of M&As. In case of acquiring firms, there have been divergent of opinions on this issue. However, none of the studies in the Indian context examined these issues. Being an important area having wide policy implications, it needs to be investigated. In the recent past, some corporate actions has proved that hostile M&A front prevailing in the Indian corporate front. Many companies are also playing safe by shoring up their holdings through buy-back of shares to thwart hostile corporate raids. In this backdrop, better corporate governance practices have become more essential. The impact of mergers and acquisitions on corporate performance could be measured in several ways. One way of analysing is to evaluate the impact of M&As in terms of various measures of profitability before and after mergers and acquisitions. There are two sets of arguments. One set of arguments hold that significant improvement in profitability after M&As and vice-versa. Another aspect relating to the performance analysis is that many firms engaged in a series of M&A activities over a time as has been observed in the present study. Thus, it is difficult to isolate the influence of a single acquisition event. Thus, the best course of action is to investigate each of the pre and post merger acquisitions events to analyse impact, which has been followed in this study. The other way to measure the performance is to monitor the share prices after the merger or acquisition deal is struck, which assumes that stock markets are efficient. Empirical studies of this type indicate that a target firm's shareholders benefit and the bidding firm's shareholders either gain or do not lose. An exploratory attempt has been made here to investigate the impact of M&As on share price behaviour of the acquiring firms. This study concentrated only on acquiring firms, as relevant data is not available for target firms because either they are merged or taken over by the acquiring firms. It is observed that in majority of the cases acquiring company's shareholder's gain due to the M&A. This also in consistent with the literature that Indian stock markets do take a positive view of M&A strategies being adopted by the Indian companies. As has been stated in the research findings, the reasons for appreciation may be related to the anticipated value enhancement of the merged entity as a result of expected increase in cash flows from the M&A., This is in tandem with the arguments that the shareholders might have taken into account the expected increase in performance due to better profitability, market leadership, new growth prospects and cost efficiency. It has also been found from the literature that takeovers are motivated by expectations of improved performance due to the realization of synergistic benefits, which reflected in the share prices. This has been reflected in motives of Indian M&As which might have caused the share prices appreciation. A Strong R&D and Strategic alignment has also emerged as important motive of Indian M&As which may have influenced the share price behaviour of the Indian enterprises. However, there are some important issues, which needs to be taken care of for better corporate governance practices when corporate enterprises indulge in mergers and acquisitions.