Mangalore was an important town even during the early historic times referred to by Greek Geographers Pliny (23 AD) and Ptolemy (c. 150 AD). It was the capital of the Alupa rulers for a long time. In 1526 AD Mangalore was taken over by the Portuguese who were subsequently expelled by the Nayakas of Bidnur in the early 18th century. Haider Ali captured this place in 1763. In 1768, it went into the hands of the British.
Sultan Bateri, a watch tower, is said to have been built by Tipu Sultan to contain the warships into the Gurpur River. Though it is a simple watch tower, it looks like a miniature fortress with its many musket holes for mounting canons all round.
~ ASI Plaque at Sultan Bateri (Battery)
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