Bank FD offers 8.5% interest: Which is the right amount to invest that will be fully safe?

Now, a whopping 8.5 to 9 per cent return from fixed deposits might be a lucrative option for many traditional investors. Interest rates of fixed deposits may further increase in the coming few quarters, believe experts. But should investors, who wish to go for bigger FDs, only check the return before booking their deposits, and not the bank that is offering these high rates? ET Wealth Online explains what the best way is to manage investment into fixed deposits with safety to ensure a maximum return in the future