This organization uses world census data to categorize groups of “unreached” people: People who are not Evangelical Christians
According this group, 93% of India is “unreached”
What is the 10/40 Window? :: Joshua Project.
“The 10/40 Window is the rectangular area of North Africa, the Middle East and Asia approximately between 10 degrees north and 40 degrees north latitude. The 10/40 Window is often called “The Resistant Belt” and includes the majority of the world’s Muslims, Hindus, and Buddhists.”