Among the three trees listed, only Red Sanders (Pterocarpus santalinus) is native to India, specifically to the southern parts. Cashew (Anacardium occidentale) is originally from Brazil, and Papaya (Carica papaya) is native to tropical regions of the Americas. This distinction underlines the importance of understanding the geographical distribution of plant species, particularly within the context of biodiversity conservation and sustainable resource management, which are core themes in UPSC Prelims GS Paper I. Recognizing native species aids in ecological balance and informs policies on agriculture and forestry in India.