Postal life insurance policy surrendered and whole corpus to be invested in mutual funds. Is it profitable?

[finprudence]

I have postal life insurance policy started in 2012 , it's endowment plan till 2045, the return generated is just 5℅. Now I think if I surrender the policy it gives me only 55℅ of amount that I paid as premuim. If I invest this surrendered value in mutual funds now and hold till 2045. Will it be more profitable or not. Also I can buy term plan to insure instead of endowment plans.