The chart is a PCA plot showing genetic relationships among South Asian and neighboring populations. PC1 and PC2 axes represent genetic variation. Nepalese groups like Rai, Magar, and Tamang cluster closer to Tibetans, showing more Himalayan ancestry. Indian groups like Punjab and Kshatriya are more spread out, reflecting diverse South Asian ancestry. Han Chinese and Tibetans are distinct but overlap slightly with some Nepalese, indicating limited admixture.