According to conventional theory of stock market, the institutional investors and individual investors are rational by nature who would like to maximize their wealth within a stipulated period. However, there are many paradigms related to financial behaviour of individuals where it influences their investment decisions, leading to behave in irrational ways. Most of the investor's attitude towards investment states that their attitudinal behaviour always influences their investment decisions and will have an impact on their portfolios, so it clearly states that the psychological aspects of investor's will always have an impact on investment pattern what they choose and helps them to decide their investment avenues. Behavioral finance predicts the trading behavior of investors based on some paradigms in the stock market and is used as a basis for creating more efficient trading strategies for the purpose of maximizing returns. In this research study attempt has been made to understand and explain the impact of behavioural paradigms of financial market influencing on individual trading and investment behaviour around the world as well as the efforts has been made to put forth to find out the paradigms and its reasons for existence and acceptance of behavioural biases in the modern financial theory. In present scenario there are most cases where the performance of the financial market depends on the attitude of investors who invest in criterion portfolio and play a major role towards the investment, so there is a need of studying the above said existing paradigms for the purpose of evaluating the performance of various stocks and shares of the organizations and others in the financial market. And the research has proved that behavioural finance influences the investment decision making and their trading behaviour and also have an impact on the equity market as well. Dr. H. Prakash | Rekha D. M "Behavioural Finance Paradigms and Its Influences on Investment Decisions and Performance of Equity Market- A Study in Bangalore" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29614.pdf