Are the prelims examination marks used for determining the final order of merit?

UPSC conducts Preliminary Examination of the Civil Services Examination for recruitment to the Indian Administrative Service (IAS), Indian Foreign Service (IFS), Indian Police Service (IPS) and other Central Services.

This Examination is meant to serve as a screening test only; the marks obtained in the Preliminary Examination by the candidates, who are declared qualified for admission to the Main Examination, are not counted for determining their final order of merit. Only those candidates, who are declared by the Commission to have qualified in the Preliminary Examination in the year, will be eligible to appear at the Main Examination of that year provided they are otherwise eligible for admission to the Main Examination.