Majha
The partition split the Punjab Province (British India) into the two states of West Punjab (Punjab, Pakistan) and East Punjab. However, the historic Majha region is arguably still the same as before since the partition does not change the previous history of Punjab, therefore does not change the geography of the Majha region of the historic Punjab region.
East Punjab
With effect from 1 November 1966, there was yet another reorganisation, this time on linguistic lines, when the state of Punjab as constituted in 1956 was divided into three: the mostly Hindi-speaking part became the present-day Indian state of Haryana and the mostly Punjabi-speaking part became the present-day Punjab, while a new union territory (Chandigarh) was also created, to serve as a capital to both states. At the same time, some parts of the former territory of Patiala and East Punjab States Union, including Solan and Nalagarh, were transferred into the state of Himachal Pradesh.