No you are not eligible to apply for Indian administrative service examination at the age of 17 years .Here I am giving you information about required age limit and eligibility criteria for IAS exam .

Required Age limit :
21-30 years as on 1st August of the year of Examination.
OBC candidate age limit maximum : 33 years.
SC/ST has 5 years of age relaxation.

IAS exam Eligibility Criteria:
You must complete graduation in any discipline from a well recognized university.

Important dates :
Civil Services Preliminary Exam 2014
Notification Date : 17th May 2014
Last dates for Applications : 16th June 2014
Examination will be held on : 24th August 2014

Civil Services Main Exam 2014
Examination will be held on : 14th December 2014