Attock Khurd (; "Little Attock") is a small town located beside the Indus River in the Attock District of Punjab Province in Pakistan. Khurd and Kalan are Persian words, themselves derived from Sanskrit (Kshudra means "small" in Sanskrit: "ksh" becomes "kha" in Prakrit) words, which means small and big respectively. When two villages have the same name, they are distinguished as Kalan and Khurd with the villages' names.
Attock Khurd (the old city) has a rich history and was of special importance to the entire Indian subcontinent. The great grammarian Pāṇini, who wrote the Aṣṭādhyāyī, the oldest surviving Sanskrit grammar, is said in some historical sources to have been born in 520 BCE near Attock in Salatura, modern Lahur, on the right bank of the Indus River in the ancient Kambojan/Gandharan territory. Attock was located on the high road, the Uttarapatha, the principal route of international commerce and communication between the sub-contine