Block from U+0A00 to U+0A7F. This block was introduced in Unicode version 1.1 (1993). It contains 79 codepoints.
The Wikipedia provides the following information on block Gurmukhi:
Gurmukhi is a Unicode block containing characters for the Punjabi language, as it is written in India. In its original incarnation, the code points U+0A02..U+0A4C were a direct copy of the Gurmukhi characters A2-EC from the 1988 ISCII standard. The Devanagari, Bengali, Gujarati, Oriya, Tamil, Telugu, Kannada, and Malayalam blocks were similarly all based on their ISCII encodings.