Due to economic liberalisation, the stock market now plays a big part in financing Indian companies. The stock market plays a crucial role in maintaining companies’ suitable and supportive management structures. Organising the resources required to establish a company stock market that acts as a link between investors and entrepreneurs. Consequently, in order to identify the variables that may affect various investment decisions, it is important to assess the financial preferences and behavioural patterns of individual investors. Determining how psychological biases impact behaviour and financial decisions when making market investments is the goal of the current study. Although investment is closely related to economic or financial matters, it is also linked to the psychological study of human decision-making. Fear, confidence, overconfidence, panic, risk, greed, media, other investor, and motivating speech are examples of psychological biases. Both the performance of the market and people’s investment decisions will be impacted by this.