Final answer:
India's 3rd scientific expedition to Antarctica likely included geological survey tools and satellite communication devices as part of their essential equipment for conducting research and maintaining communication.
Step-by-step explanation:
When India's 3rd scientific expedition landed on Antarctica, geological survey tools and satellite communication devices were likely part of the team's inventory.
Scientific expeditions to extreme environments like Antarctica require a variety of specialized equipment. Based on the historical practices of polar expeditions and the context of equipment used by similar missions such as the US Antarctic Search for Meteorites (ANSMET) team, key items typically include geological survey tools, to study the rock and ice structures, and satellite communication devices, to maintain communication with the outside world and coordinate logistics.
Oxygen cylinders might be less crucial in Antarctica's environment, while a Greaves genset, although potentially useful for power generation, is not specifically indicated in the provided information or commonly highlighted as essential for such expeditions.