Hello,

All India Sainik School Entrance Examination (AISSEE) are organized every year by Sainik Schools Society governed by Ministry of Defense, Govt. of India to give admission to boys of the weaker economic sections in both class VI & IX of their public residential schools affiliated to CBSE.

It is very difficult to find the material online study byt you can buy books at amazon, flipkart, arihant book store etc.