My car is 6 years old (palio).Car tyres are in good condition but some people say that car tyres should be replaced every 5 years.Is it true?You can also suggest me best tubeless tyres.

The tyre life depends on 2 factorse age and wear & tear. Tyres should be replaced every 5 years, irrespective of the wear levels.It is important to Check the date of manufacture while buying car tyres.