Chak is an Urdu word, which means village. In the Punjab province of Pakistan, numbers are used instead of names. The villages are named using a certain nomenclature that dates back to British rule; all names are prefixed "Chak" followed by a number and a letter. The number is the name of the village and the letter relates to their source of water. .
For example, in Sadiqabad the chaks use water from a canal for agriculture. These chaks are suffixed either with P or NP, where the P stands for the Panjnad River from which they draw water. Some chaks that have developed a name other than their number, which may reference the name of a town leader. They may be referred to as "Chak (number) (letters) (name)". For instance: Chak 130 P, Chak 151 P, Chak 152 P, Chak 164 NP, Chak 173 P.
In other parts of Punjab, chaks lie along other waterways:
Chak 354/WB (Dunyapur)
In Sanghar District, chaks are just numbered without suffix:
Chak is a village in Danta Ramgarh Tehsil of the Sikar district in Rajasthan. It is a well-known village of Pandits and Purohits. Dr. Prabhu Dayal Pareek of the village was awarded the Gold Medal for India award.