Punjabi culture
The culture of the Punjab encompasses the spoken language, written literature, cuisine, science, technology, military warfare, architecture, traditions, values and history of the Punjabi people native to the northern part of the Indian subcontinent. The term 'Punjabi' can mean both a person who lives in Punjab and also a speaker of the Punjabi language. This name originates from the Persian language 'panj', (five), and 'ab', (water). Combined together the word becomes Panjab or Punjab: land of the five rivers. Indus River (the largest river in this five river system), and the five other rivers to the south eventually join Indus or merge into it later in the downstream of the Punjab valley. All the rivers start and flow out of the Himalayas. These other five rivers are Jhelum River, Chenab River, Ravi River, Beas River and Sutlej River.
Punjabi language
Both federal and state laws specify the use of Punjabi in the field of education. The state of Punjab uses the Three Language Formula, and Punjabi is required to be either the medium of instruction, or one of the three languages learnt in all schools in Punjab. Punjabi is also a compulsory language in Haryana, and other states with a significant Punjabi speaking minority are required to offer Punjabi medium education.