NOIDA, July 25 -- The wetland in Sector 91 of Noida became the first one in Gautam Budh Nagar district to get a machine equipped with ozonization and aeration systems for purifying its water, said a group of residents that spearheaded the purchase and installation of the new machine.

The group of residents from different Noida sectors, under the "Volunteers 137" banner , contributed from their pockets to buy the machine and revive the waterbody. They said the machine will help keep the waterbody clean and maintain a good dissolved oxygen level.

"We are happy to have played a part in the rejuvenation and maintenance of a pond in our city. It is important that the water in ponds remain clean and this machine will help ensure that it does,...