Investors always try to make rational decision while analyzing and interpreting information collected from various sources for different investment avenues to arrive at an optimal investment decision. But at the same time they are influenced by various psychological factors that influence them internally and bias their investment decision. Linter (1998) studied the various factors that influence internally the informed investment decision and included them under the discipline of behavioural finance. Behavioural finance studies how people make investment decision and influenced by internal factors and bias. The main purpose of the paper is to assess impact of behavioural factors over mutual fund investment decision made by investors in Raipur city.