Why not?! Prahlad did not make any mistake in posting his questions here.

Hi Kai , Asking a question is one thing but understanding it requires a little more previous knowledge of the subject . I say so because of his this statement:-
but Vcc is not given much importance usually people use thicker traces for Vcc and not Planes like those used for Gnd

This sounds to me that he is not aware of ground return path .

And, what kind of pills shall an engineer take, whose product didn't pass the CE testings, allthough having had used a four layer board?

The correct remedy is as follows :-

Rx

1) Tab Novalgin ----------1 - 1
2) Asprin or Coldsprin----- 1 - 1
3) Try Acupressure points stimulation .
4) 9 hour sleep to start the battle again .

Bye
Sanjeev