The word "patched" is not an official term from the government. It is a user-generated label. A patched Ready Reckoner 2001-02 Mumbai PDF typically includes one or more of the following modifications:
Crucially, "patched" does not mean the actual financial rates have been altered fraudulently. It means the file structure has been repaired to make the data accessible.
Since the government does not officially provide a "patched" version, you have two legal options.
The patch corrects the geometry. Pages that were scanned at an angle are straightened (deskewed). Dark borders are cropped. Illegible text in the gutter (center fold) is digitally inpainted using adjacent clean areas.
Beware of "patched" versions that change the rates to suit a tax evasion scheme. Always cross-check any patched PDF with the original physical gazette notification (often referenced as Government Gazette No. IGR-2001/C.R. No. 45/2001).
The Ready Reckoner (RR), officially known as the Annual Statement of Rates (ASR), is a document published by the Inspector General of Registration (IGR) and Controller of Stamps, Maharashtra.