Semaphore-type tower of cylindrical construction with rendered exterior. Three horizontal string-courses are visible, and the interior of the tower has some timbers surviving of the staging. Small oval-shaped openings are arranged vertically, and two opposing ground-floor entrances each have a round-headed arch. In many respects the tower at Noada has much in common with Nibria, also a semaphore-type tower. The immediate surroundings at Noada are residential buildings, and the tower itself is located to the west of the Barrackpore Trunk Road, in the northern districts of Kolkata. As a semaphore tower, it is likely that Noada was contemporary with Nibria and so pre-existed the Calcutta Baseline nearby and the two terminal towers constructed by Everest at Rishi and at Sukchar.
A TS named Noáda is listed in GTS Synopsis Volume XII (page 105) but does not appear in the detailed descriptions of stations. The location is given by the GTS as 88˚ 25’ 6.37’’ N and 22˚ 40’ 7.37’’ E.
The external render is decayed in places but overall the structure is intact and well-preserved, as are the tower’s internal features, unusually so.