दुनिया की सबसे लंबी पानी के नीचे की सुरंग।
https://rajpalgodara.medium.com/%E0%A4%A6%E0%A5%81%E0%A4%A8%E0%A4%BF%E0%A4%AF%E0%A4%BE-%E0%A4%95%E0%A5%80-%E0%A4%B8%E0%A4%AC%E0%A4%B8%E0%A5%87-%E0%A4%B2%E0%A4%82%E0%A4%AC%E0%A5%80-%E0%A4%AA%E0%A4%BE%E0%A4%A8%E0%A5%80-%E0%A4%95%E0%A5%87-%E0%A4%A8%E0%A5%80%E0%A4%9A%E0%A5%87-%E0%A4%95%E0%A5%80-%E0%A4%B8%E0%A5%81%E0%A4%B0%E0%A4%82%E0%A4%97-1e5c735d00fc
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