Here on the following link (click on the link)there is a general letter.
It is not something concrete about the preparation. However, there are some suggestions and issue which are useful if one likes to adopt.
I will strongly recommend that those who are regularly visiting this site, and they are many as my site meter can tell, they must go through it. Those who have taken their first attempt or who are left only with one more attempt which they may take in May 2006, they should go through the whole article.
The General Studies Paper was tough this time. 80+ score can be save. But this year number of seats for IAS and IPS will be less. It is really becoming tough if in December 2005 the age is reduced.
Just have faith in God and make maximum efforts.