Husainabad Clock Tower is a clock tower located in the Lucknow, Uttar Pradesh. It was constructed in 1881 by Nawab Nasir-ud-din Haider to mark the arrival of Sir George Couper, 1st Lieutenant Governor of United Province of Avadh.

Husainabad clock tower is adjudged as the tallest among all the clock towers in India.

source: http://en.wikipedia.org/wiki/Husainabad_Clock_Tower