It is old way to invest money and it is consider safe way to save money. One can expect return up to 7%.
It is periodically investment which gives up to 8% return.
There are two types of bonds available in market one is government bond and another one is corporate bond. Bonds can give up to 12% return.
Investing in Equity is consider unlimited return but unlimited risk is also involve. Chose some Quality stock to invest for long time.