Hello,

UPSC conducts Indian Economics Service every year subjected to availability of vacancy, for instance earlier this year UPSC had notified about not conducting this exam because there were no vacancy in the department of Ministry of Finance, but later on decision was changed, notification came in the month of August and last date to apply was 1st September, in order to appear for this exam candidates are required to do post-graduation in any of the following disciplines such as Economics, Applied Economics, Econometrics, Business Economics, you may check out the official notification of this year at https://www.upsc.gov.in/sites/default/files/Notifi_IES_2020_Eng.pdf for more details regarding this.