“.........They are people of yellow complexion, oblique eyes, high cheek bones, sparse hair and medium height.” The reference here is to

The quoted description—“yellow complexion, oblique eyes, high cheek bones, sparse hair and medium height”—matches the classic Mongoloid racial profile. Book sources describe Mongoloids as having a light yellow colour with oblique eyes and short/flat face morphology [1]. Anthropological summaries further record high, flat cheekbones and oblique (epicanthic) eyes with a short-to-medium stature for Mongoloid populations [2]. Additional references note yellowish complexion together with scanty or sparse facial and body hair as typical Mongoloid traits [3]. By contrast, Nordic Aryans are typically tall and fair-haired, Negroids have dark skin and abundant curly hair, and Austrics/Australoids are dark-complexioned with plentiful hair—making Mongoloid the correct match for the description.

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 13: Cultural Setting > 7. The Mongoloids > p. 10
2. [2] http://ccnet.vidyasagar.ac.in:8450/pluginfile.php/1368/mod_resource/content/1/ANT%20203_Linguistic%20Classification.pdf
3. [3] https://files.core.ac.uk/download/pdf/211833865.pdf