Defence Minister A.K. Antony resumed office on Monday after spending a month in the Army’s Research and Referral hospital here, where he underwent a prostate surgery. “I was missing you,” Mr. Antony told a group of defence correspondents who met him. Looking cheerful, he said he had converted a room in the hospital into a makeshift office and cleared files. Prime Minister Manmohan Singh, UPA chairperson Sonia Gandhi and Congress vice-president Rahul Gandhi met him in the hospital on Sunday.