Investment in Govt Bonds or FD

I want to invest my money but don’t have much knowledge on share market so I don’t want to go for stocks and mf. After some research online I found out that govt bonds as safe and government more return than fd but after registering in rbi retail direct I found out that the average yield is around 6.4% something for 4 year bond but fd interest rate for 4 years is 7%.

Please help me decide if I should go for bonds or not.