Hyderabad: A 25-year-old man drowned in the Vizag Colony backwaters near the Nagarjuna Sagar Dam in Nalgonda district on Saturday, August 15, while on a trip with his friends. Speaking to Siasat.com, an official from Neredugommu Police Station said that Durgam Thirumalesh, a native of Kethepally mandal, had gone swimming in the Krishna River with two of his friends at around 10 am. Three other friends stood on the shore waiting for them. While t…