Recently, Post Office ACT 1898 ( 6 of 1898) has been AMENDED [Indian Post Office (3rd Amendment) Rules 2013](dated 18-11-2013) to introduce "EXPRESS PARCEL" & "BUSINESS PARCEL" Services.
In view of the above, the LETTER CARDS & ENVELOPES may going to change their size, shape, design etc.,
click here : Gazette copy