GS 2011- Series A Prelims-GS-2011-Qs-with-Answer GS 2012-Series A GS-2012-Answers-with-Notes GS 2013-Series A GS-2013-Answers-with-Notes GS 2014- Series A GS-2014-Answers-with-Notes GS 2015-Series A GS-2015-SERIES-A-NOTES GS 2016-Series A GS-2016-Answers-with-NOTES GS 2017-Series A GS-2017-SERIES-A-NOTES GS 2018-Series A GS-2018-Answers-with-NOTES GS 2019-Series A GS-2019-Answers-with-NOTES
