My vehicle started overheating after overhaul, I have changed the water pump, radiator, top gasket, bled the air passage and the electric fan is working well and there was no leakage. I don't know what to do again

Have you check whether radiator is blocked?

Have you replaced the thermostat, the current one may be stucked closed

What kind of car are you using sir

Check if your exhaust is blocked.

Godson1981:
What kind of car are you using sir

That's a good question. Model/make and year of your car

Dwizzy1:
My vehicle started overheating after overhaul, I have changed the water pump, radiator, top gasket, bled the air passage and the electric fan is working well and there was no leakage. I don't know what to do again

It just unfortunate our technican don't invest in training and tools but prefer to indulge In trial and error parts throwing which can be frustrating for their customer .
Every issue come with its own special test and troubleshooting process and there already specialized tools for this and what is needed is to take your car to a technician that can conduct this test. this is how is being done :
see the tool in action for troubleshooting of overheating of a mini cooper and the culprit detected within 5 minutes .

Ruptured thermostat housing is the culprit