Correct Answer : Option (A) - Meghalaya
India's deepest shaft cave has been discovered at Krem Um Ladaw in East Khasi Hills district of Meghalaya during the 28th edition of the annual 'Caving in the Abode of the Clouds Expedition'. The cave has a 105 m deep shaft entrance passage. The cave has a 105 m deep shaft entrance passage. This comes a year after the discovery of the world's longest sandstone cave - Krem Puri - near the village of Laitsohum in Mawsynram region of East Khasi Hills district of Meghalaya. With a length of 24,583 metres, Krem Puri was discovered back in 2016 but the actual length of the cave was obtained by the Meghalaya Adventurers' Association (MAA) during one of its expeditions. The cave system has fossils of dinosaurs, especially the Mosasaurus, a giant reptile that lived 66-76 million years ago.