The Chandrayaan-3 mission aims at soft-landing of the spacecraft on the unexplored southern pole of the Moon.
The soil samples at Siddampoondi village in Namakkal district are said to be very similar to the soil in the lunar surface, especially in the South Pole.
This district had sent soil samples to the ISRO in conducting the tests for both Chandrayaan-2 and Chandrayaan-3 missions.