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This looks more like a tower than a tube well (Bengali: নলকূপ; nalkūp). It is in dilapidated condition. A marble plaque on the structure mentions that it was built by Swarnatalata Basu in 1932 in memory of her husband Upendra Nath Basu (1873–1892). (Note: The dates in the plaque were according to the Bengali calendar).
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This is the ancestral house of former Army General Shankar Roychowdhury. There are Natmandir, old temples in the premises.
Golpataban
Walking trails under the canopy of Golpata trees. The trails lead to the river where there are views of Bangladesh. It is recommended to bring a photo ID as you may be requested to present it before being allowed to enter.