Financial markets are very uncertain and prices fluctuate frequently in financial markets, which makes it difficult for investors to take investment decisions. Market volatility directly impacts the performance of financial assets and influences the investor behaviour. In this situation, mutual funds have become a popular investment option because it provides diversification, professional management and is easily accessible for small investors too. There are various methods for investing in mutual funds, one of which is Systematic Investment Plan (SIP). SIP encourages disciplined investing and helps in lowering the effect of market volatility. The main objective of this study is to understand the role of Systematic Investment Plan (SIP) plays in managing mutual fund investments and controlling the impact of market volatility. In this research, it has been analysed how SIP works, its advantages as an investment strategy and its effectiveness in managing risk in uncertain market conditions. The research has been done on secondary data method collected from research articles, books, financial reports and official websites like AMFI and SEBI. Study findings show that SIP develops disciplined investing habits in investors. It offers the benefit of rupee cost averaging, which reduces the risk of market timing. Investors can also benefit from compounding over the long-term. Another important aspect of SIP is that small investors can also invest in capital markets a small amount of money. This is why, SIP is considered as an effective investment strategy because it helps in managing mutual fund investments and reduces the negative effects of market volatility.