The boundaries of the Punjab territory varied from time to time throughout its history.

1. According to the Rig-Veda, the boundaries of Punjab included the regions covered by the rivers Indus, Jhelum, Chenab, Ravi, Beas, Satluj and Saraswati.
2. During the Mauryan and Kushan periods, the boundaries of Punjab extended upto Hindukush mountain ranges and Taxila.
3. During the Sultanate period (1206-1526), the boundaries of Punjab extended from Lahore to Peshawar, During the Mughal period (1526-1707), the Punjab was divided into two provinces, namely, Lahore Suba and Multan Suba.
4. During the reign of Maharaja Ranjit Singh, the boundaries of Punjab extended from the river Satluj to Peshawar.
5. The British named the territory of Lahore kingdom of Maharaja Dalip Singh (son of Maharaja Ranjit Singh) as the Punjab after annexing it to the British Indian Empire.
6. After the partition of India, a major part of the Punjab was transferred to Pakistan.
7. On the basis- of language, Punjab was divided into three states namely Punjab, Haryana and Himachal Pradesh.