Im doing an investment need guidance

I am interested in an investment venture with my friend doing some it business the amount I'm investing is 1 cr and my friend is providing surety of the amount invested that your invested amount is safe and you will start getting returns after one year and after one year if I did not want to continue I can exit with my profits and invested amount within 3 months, that's the bird-eye view of the contracts it can dig down to further details, I need guidance about the type of contract that I sign to ensure that if in the worst case scenario, i can take legal action, can u please guide me