Mysterious underground sounds have caused concern among local residents of a tiny hamlet in Kottayam district.
The deafening sounds were heard twice in the early hours of Friday, according to the residents of Chenappady village. Similar sounds were reported in the area and some neighbouring places earlier this week also, they said.
The villagers said there was no visible change in the surrounding environment and only a scientific study could ascertain the exact cause of the continuing underground sounds.