It comes into force on the 12th October 2005 (120th day of its enactment on 15th June,2005).Some provisions have come into force with immediate effect viz. obligations of public authorities [S.4(1)], designation of Public Information Officers and Assistant Public Information Officers [S.5(1) and 5(2)], constitution of Central Information Commission (S.12 and 13), constitution of State Information Commission (S.15 and 16), non-applicability of the Act to Intelligence and Security Organizations (S.24) and power to make rules to carry out the provisions of the Act (S.27 and 28).

Information means any material in any form including records, documents, memos, e-mails, opinions, advices, press releases, circulars, orders, logbooks, contracts, reports, papers, samples, models, data material held in any electronic form and information relating to any private body which can be accessed by a public authority under any other law for time being in force [S.2(f)].