https://www.9curry.com/answer-keys/13411e UPSC IES & ISS Answer Key 2018 Published: December 4, 2018 6:37am | Updated: August 30, 2019 11:09pm by Harish Kumawat UPSC IES & ISS Answer Key 2018: Union Public Service Commission has issued the Answer Key on 04 Dec 2018 for UPSC IES & ISS Exam 2018. Answer Key can be accessed from the link given below. Issued on: 04 Dec 2018