Also, since large area in south-western Punjab solely depend on the canal water for irrigation, and water from Buddha Nullah enters various canals after Harike waterworks near Firozpur, thus affecting far-reaching areas such as Malout, Zira, upper Lambi, while the areas being fed by Sirhind feeder, are the most-affected by its pollution.
Tollygunge is named after Major William Tolly, the Ferdinand de Lesseps of Calcutta, who in 1775-76 started a project to excavate and dredge the Tolly's Nullah (Adi Ganga) (also named for him) as a passage for the people of East Bengal and Assam to Calcutta.
Toru is located South of Mardan City, surrounded by two perennial nullahs called Kalpani and Balar; the former descends down from the heights of Malakand to the plains of this vast, fertile tract, while the later comes from the adjacent district of Swabi.