(a) As Bagerhat is near the Bay of Bengal, the water is usually saline. (b) Khan Jahan Ali was a philanthropic man. (c) He, therefore, excavated many tanks to provide fresh water to the people. (d) He came to Bagerhat to preach Islam and to promote the plight of common people. (e) He found Bagerhat beset with many problems. (f) His memory will never be sunk into oblivion. (g) Thus he redressed the problem of drinking water. (h) The scarcity of drinking water is one of them.