UPSC: Indian Economic & Statistical Service Examination (IES/ISS)

I really want to thank upsc portal to take the initiative for a comprehensive plan to help students like me.......who wants to/ who are preparing for upsc exma, however i would argue upsc portal to please give some idea about indian econimic service exam...as to its study matirial, trend analysis, exam strategey, coaching institute availbale....etc...

Thanks
Hement Tyagi