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Researches on paleoclimate driving mechanism during the last millennium play a significant role in understanding the evolution law of the climate system and predicting the future climate variability.Cave stalagmites δ180 is one of the most imPortant high-resolution alternative indexes of paleo-monsoon.Jhumar Cave is located near the town of Jagdalpur in central India, where annual precipitation variability is dominated by monsoon precipitation.The stalagmites from this cave record the Indian Summer Monsoon (ISM) variability.