The biological invasions are a major constituent of global change, and they cause several pessimistic impacts on biodiversity, ecosystem services, and human well-being. On 14^th October 2015, 12.30 PM during the field on the Moyar valley The Nilgiris, Tamil Nadu. We were observed an Opuntia stricta grew on Acacia leucophloea. After three years on 27^th June 2018, 10.00 AM we were visited the same place for a field work purpose yet again we were observed the same plant growing healthy on the trunk of the same native Acacia leucophloea tree. This is an interesting observation because Opuntia stricta an erect or sprawling shrub up to 2 m (6.6 ft) in height it grows on soil surface and these plants are not an Epiphytes and Parasitic plants. This observation clearly shows that the survival capacity of the invasive species than the native plants. Through this observation, we conclude and strongly recommend a concerted effort is needed to clear these like unwanted invasive species to save a natural and sustainable environment in the future.