AOA dear members

i need ur help about DEFINITE info about salary and other financial package of fsp, customa n income tax. my bro is csp2004.he has qualified css2006 also n may get fsp, customa n income tax.
I want to know about salary and other financial benefits paid custom ,income tax. n FSP(in pakistan and abroad like in Islamabad , london , luanda and Dhaka , to represent a few countries).he wants to decide to join r not.

Thanking in anticipation.regards