"Now that the formal approval for the project has come, we will really want to open the space for the international community to come and participate in the experiments or even propose new experiments. The experiment that we are doing is only the first experiment. There can be other experiments like on the dark matters. So we would like to invite the international community to come here and join us and participate so that this centre becomes a global hub for such things," Mondal added.

The project will be jointly funded by the Department of Science and Technology and the Department of Atomic Energy, while the Tamil Nadu government is helping with the infrastructure, Mondal said.

In 2012, senior CPI-M leader V.S. Achuthandan had flayed the then UPA government for facilitating a "US agenda" through the Neutrino observatory.

He, however, was misled and the project authorities were able to convince him about it, Mondal said, adding any apprehensions about the project's impact on habitation in and around the village was unfounded.

"The Neutrino that we are going to detect is there anyway. We will only detect and study its properties. Light from the Sun, stars and galaxies are there always. When you put a telescope, you detect it. Here also the Neutrinos are coming, we are only putting the detector underground," he said.

"We have to put it underground because on the surface, there are other interactions which will completely submerge the Neutrino event. That's why we have to go deep underground, where other particles get absorbed and we can measure the Neutrino," Mondal added.

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