Gas water heater makes a popping noise after we use any hot water

This can be caused by sediment buildup in the tank. You need to power flush the tank and clear any rust from the bottom. Instead of heating water, you are heating rust and debris and the heat transfer is poor so the water trapped in the rust boils and pops.

Yeah its true but we can use electric water heater.It is not too much expensive and it is easily approachable for all people.
Rational people thinks at the margin.

Danish. What is easily approachable? Installing a HW heater, either gas or electric, is not for inexperienced people! BOOM and ZZZZZ!