Simplify the following text for a Grade 7 native English-speaking person.
Original: Today the term West Punjab is used in Pakistan to describe the western part of Pakistan 's Punjab province , while in India it is often used to refer to Pakistani Punjab .
Simplified: The East Punjab where most people were Sikh and Hindu became part of the new nation of India while the mainly Muslim West Punjab became part of the new nation of Pakistan . The name of the province was shortened to Punjab in 1950 .