Research issue: To determine the perfect day to invest and to redeem the mutual fund schemes. To evaluate the risk and return of the equity mutual funds (Regular-GROWTH). Objective: To study the day effect of the selected scrip’s in the mutual fund industry from 2014 -2018 To find the performance of the scrips and to find out the exact day to invest in selected mutual funds companies. Research tools: Skewness, kurtosis, returns, risk, beta Findings: This study enables market participants to develop trading strategy which could fetch abnormal profits on the basis of the past pattern.it conducts the investigation of the day effect on the volatility of major stock market indexes for the period of 2014 to 2018. The highest return occurs on 24th day of every month and thus it supports the day effect. Practical Implication: this study suggests the traders invest in scrip’s on the basis of the past patterns; this could earn them more profits