Just a heads up to everyone.
It is not necessary in Axio, and I suppose any other engine which has a separate Idle Speed Control Valve, to completely dismantle the throttle body for cleaning. The throttle body can be cleaned just the same without dismantling it - remove the air hose from throttle body and clean away the butterfly valve from outside as well as inside by opening it, you can simply use those alcohol pads they have these days, used for cleaning the skin before injections. A DIY was done today for the said but only a waste of time. I was not going to dismantle the throttle body, just the ISCV but went with a mechanic's mashwara......
The important part is cleaning the Idle Speed Control Valve assembly. It also seems to have a sensor which by part code comes up as "throttle sensor", which in my case was crusted with carbon and blackened.