Correct Option (a):
The Onge tribe is one of the Particularly Vulnerable Tribal Groups (PVTGs) inhabiting the Andaman and Nicobar Islands. They primarily reside on Little Andaman Island. The Onge belong to the Negrito racial group, similar to other indigenous tribes of the Andaman Islands such as the Great Andamanese and Jarawa. Their traditional livelihood relies on hunting, fishing, and gathering.
Incorrect Options:
Dadra and Nagar Haveli, and Daman and Diu are Union Territories situated on the western coast of mainland India. Their tribal populations predominantly include communities like the Bhil and Varli, distinct from the Onge.
Lakshadweep is an archipelago located in the Arabian Sea. Its population primarily consists of indigenous Muslim communities, and it does not have Negrito tribal groups like the Onge.