Shakti
Papers are to be found under the redbook section of IBM.
Search for AIX certification under their site.
You need to have access to a machine running AIX; there are cheap
second hand machine to be found under a market site like ebay.
The certification location is to be found if you enroll in VUE.
http://www.vue.com
Your sponsor would be ibm; once enrolled in the site (not for an exam)
you have an oversight of where the locations are in your area.
I hope this answers your questions.