India, Feb. 8 -- The Greater Noida authority carried out demolition drives over three days this week, clearing nearly 37,000 square metres of unauthorised construction from floodplains and submergence zones, officials said on Saturday.

Between February 4 and 6, illegal structures such boundary walls, partially constructed houses, among others were removed from villages including Bhanauta, Rohillapur, Haibatpur and Chipiyana Khurd, said officials, adding that most of the construction had come up in low-lying and flood-prone areas where building activity is prohibited.

Officials said, on February 4, authorities demolished unauthorised construction spread over nearly 10,000 square metres in Bhanauta village on notified land, whose estimate...