Hydrogeology of the Kanyakumari to Colachel aquifer was brought out by systematic hydrogeological, lithological and hydrological studies. Intensive field work was carried out to study the geomorphic and geologic variations within the study area.

Observers in relative motion or at different gravitational potentials measure disparate clock rates. These predictions of relativity have previously been observed with atomic clocks at high velocities and with large changes in elevation. We observed time dilation from relative speeds of less than 10 meters per second by comparing two optical atomic clocks connected by a 75-meter length of optical fiber. We can now also detect time dilation due to a change in height near

As Einstein predicted, a slow drive or a step up a ladder is enough to warp time.

Under water lake tapping is a Norwegian technique developed in that country mainly to tap the inland lakes located high up in the mountains below their normal levels for electricity generation and drinking water supply. This technique has been used for the first time in India as well in Asian region on Koyna Hydroelectric Project Stage-IV.

Rapid visual screening technique has been resorted to for assessing seismic vulnerability and risk in the Himalayan township of Mussoorie that falls in Zone IV of the Earthquake Zoning Map of India.