If one invests through SIP, how much return can one expect?

The return you can expect from investing through a SIP (Systematic Investment Plan) depends on various factors, such as the duration of the investment, the performance of the underlying assets (like stocks, mutual funds, etc.), and market conditions. SIP is a method of investing a fixed sum regularly in mutual funds or stocks, typically monthly.
Mutual fund investments are subject to market risks, read all scheme related documents carefully.