Generally speaking this question depends on your timeline. If you need your money in two months investing them could be really stupid, as you might have a lot less by then. If your timeframe is 5 years you should ALWAYS invest some of it. The bank normally don't give you more interest than to cover inflation, so you're not going to make any money by that.
It is important to save money,it can use for the future and in case of emergency to our family.but actually both are important we need to save money first so that we can invest at any partners store to make our money grow fast.