Right. That is what Wikipedia, the new Purana says. ANI is present all over India.
"The Andamanese are believed to represent the original migrations which, about 60,000 years ago, brought the first
modern humans out of Africa to the
Andaman Islands. Analysis of mtDNA, which is inherited exclusively by maternal descent, confirms the above results. There were mutations here that are found nowhere else in the world. All Onge belong to M32 mtDNA,
subgroup of M which is unique to Onge people. While parental Y-DNA is exclusively
Haplogroup D. According to the genome-wide study in 2009, Andamanese split from mainland Asia around 48,500 years."
"The Andamanese arrived at the Andaman Islands around the latest Glacial Maximum, ca. 26,000 years ago."
"The frizzy hair is considered polygenic because it is the one phenotype feature that has not changed. The skin color and stature can vary within a population. Therefore, hair characterization is very important in identifying the Andaman islanders. The stature of the people within the population has changed over time, a relatively short time. Scientists believe the variation in stature can be contributed to about 200 gene loci that influence height. Similarly, variation in skin color can be contributed to the great number of gene loci that affect the expression of that phenotype. The isolation of the Andamanese people is what has kept the variation in phenotype within the population low. The craniometric study of the Andamanese people is almost the same as that of the South Asians. Therefore, the only way to distinguish between South Asians and Andamanese people is by comparing their stature, skin color, and hair."
Andamanese peoples - Wikipedia and other pages