For my project, it asks me to find 4 political maps of India from 1850, 1920, 1947, and 2010. After that, it asks me to write an essay explaining the historical map analysis. How do I do that from political maps?

Can anyone explain how the political boundaries of India changed

You'll need to study the maps. What is the same on these maps? What is different? Why are they different?

http://en.wikipedia.org/wiki/History_of_India

Can anyone help me find a political map of India in the 1920's and 1947

I can't find any good ones that can help me identify differences

http://www.google.com/search?q=india+map+1920s&biw=1892&bih=933&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj44euC9t7LAhVF7yYKHSY8Dx0QsAQIGw

http://www.google.com/search?q=India+map+1948&biw=1892&bih=933&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwj4icOj9t7LAhXK7iYKHZqWCvIQsAQIGw

Go to http://images.google.com

Type this ~~> india 1925 political map

Press the Enter key

Find what you need.

Re-search with different years for other maps.