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How did the 1956 incorporation of PEPSU change Punjab?

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Amritsar, India: Harmandir Sahib — Punjab The Harmandir Sahib (Golden Temple; right), Amritsar, Punjab, India.

In November 1956, the Indian state of Punjab was enlarged through the incorporation of the Patiala and East Punjab States Union (PEPSU). This union consisted of several pre-independence princely territories, including Patiala, Jind, Nabha, Faridkot, Kapurthala, Kalsia, Malerkotla, and Nalagarh.1

Rather than dividing the region along linguistic lines at that time, this expansion consolidated these territories into the state of Punjab, with administrative and political leadership provided by Chief Minister Sardar Partap Singh Kairon. Following this incorporation, the demand for a separate state organized specifically around the Punjabi language intensified, eventually leading the government of India to reorganize the region on November 1, 1966.1