Sometimes your data just won't exist, or will be prohibitively expensive to purchase - in that case you might need to create your own data. Here's a guide on how to look for maps that might have what you need in paper form.
When searching for a map, it is helpful to keep a few questions in mind:
It is helpful to consider different ways that an area could be viewed or described.
For example, you need a map of Uttar Pradesh province in India, consider its location and any maps that would contain the province in whole or in part, including maps of:
If you want an even larger scale map, consider regions within the province, such as North, South, East, or West Uttar Pradesh, administrative divisions, cities or natural features.
The principle is the same for any other map: if you cannot find it at first, do not get discouraged! Imagine that you are using a web mapping service, and mentally zoom in or zoom out to find the materials you need.