Before we discuss the book, let's understand the weight of the subject. In almost every Gujarat government recruitment exam, the history of the region carries significant marks. The questions range from the Indus Valley Civilization sites found in Gujarat (like Dholavira and Lothal) to the Mughal era, the Maratha rule, and finally, the freedom struggle and the formation of the Gujarat state.
The Government of Gujarat’s project and "e-Library Gujarat" (https://elibrary.gujarat.gov.in) offer thousands of free Gujarati e-books. While the exact Yuva Upanishad book may not be there, you can find alternative history books like: i--- Gujarat No Itihas Yuva Upanishad Pdf Free Download