The Union Public Service Commission -UPSC submitted before the Supreme Court today that it is impossible to defer the civil services exams any further.<br />'' <br />''A bench headed by Justice AM Khanwilkar asked the Commission to file an affidavit stating its stand by and posted the matter for further hearing on Wednesday.<br />'' <br />''The apex court was hearing a plea filed by a group of UPSC aspirants seeking postponement of the upcoming Civil Services-Prelims Exam 2020.<br />