A company's ability to grow and survive depends on important corporate decisions. The outcomes of important business actions are being considered, such as wealth maximisation, profit maximisation, market price of shares, etc. Due to the sensitivity of stock market movements and the influence of financial and economic factors on company decisions, these external factors have a significant impact on corporate decisions. Significant business decisions such as "financial," "new ventures/initiatives/developments," and "acquisition/amalgamation/merger" should be thoroughly scrutinised to discover the stock markets' intriguing reaction that would benefit all parties involved. This article offers a critical evaluation of Tata Motors' business choices and how those choices have affected stock prices.