A Vizag kitchen has a corrosion problem disguised as a cleaning problem. Salt-laden coastal air settles on the chimney body, sink fittings, cabinet handles and any exposed metal, and the cooking film that is already there holds it in place against the surface. Salt on clean metal is bad; salt held against metal by a layer of grease is considerably worse.
That is why fittings in a Vizag kitchen age faster than the same fittings inland, and why cleaning here is doing more than making things look better.