Answers

2015-01-06T11:05:35+05:30
The QC and QD written on the topograpical maps denote the name of a district block or tehsil.

**Lx, LS wriiten on the map sheets also refer to the same thing..But if these are mentioned at the top corner or somewhere in the corners , it denotes the beginning of  new 100 X 100 grid squares.

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