The Centre's policy of giving free vaccination to the 45-plus age group and a having paid system for those below, is "prima facie arbitrary and irrational", the Supreme Court said in its detailed order of Monday's hearing made available today. Flagging several other flaws -- including shortage of vaccine doses and problems faced by rural people in accessing vaccines -- the court asked the Centre to review its vaccination policy and "place on record a roadmap of projected availability of vaccines till 31 December 2021". The court will take up the case again on June 30.