gift from another Brahman he had to acknowledge it
in a loud voice; from a Rajanya or Kshatriya, in a gentle voice; from a
Vaishya, in a whisper; and from a Sudra, in his own mind. To a Brahman
he commenced his thanks with the sacred syllable Om; to a king he gave
thanks without the sacred Om; to a Vaishya he whispered his thanks;
to a Sudra he said nothing, but thought in his own mind, _svasti_,
or 'This is good.' [22] It would thus seem clear that the Sudras
were distinct from the Aryas and were a separate and inferior race,
consisting of the indigenous people of India. In the Atharva-Veda
the Sudra is recognised as distinct from the Arya, and also the
Dasa from the Arya, as in the Rig-Veda. [23] Dr. Wilson remarks,
"The aboriginal inhabitants, again, who conformed to the Brahmanic
law, received certain privileges, and were constituted as a fourth
caste under the name of Sudras, whereas all the rest who kept aloof
were called Dasyus, whatever their language might be." [24] The
Sudras, though treated by Manu and Hindu legislation in general as a
component, if enslaved, part of the Indian community, not entitled to
the second or sacramental birth, are not even once mentioned in the
older parts of the Vedas. They are first locally brought to notice in
the Mahabharata, along with the Abhiras, dwelling on the banks of the
Indus. There are distinct classical notices of the Sudras in this very
locality and its neighbourhood. "In historical times," says Lassen,
"their name reappears in that of the town Sudros on the lower Indus,
and, what is especially worthy of notice, in that of the people Sudroi,
among the Northern Arachosians." [25]

"Thus their existence as a distinct nation is established in the
neighbourhood of the Indus, that is to say in the region in which, in
the oldest time, the Aryan Indians dwelt. The Aryans probably conquered
these indigenous inhabitants first; and when the others in the interior
of the country were subsequently subdued and enslaved, the name Sudra
was extended to the whole servile caste. There seems to have been some
hesitation in the Aryan community about the actual religious position
to be given to the Sudras. In the time of the liturgical Brahmanas
of the Vedas, they were sometimes admitted to take part in the Aryan
sacrifices. Not long afterwards, when the conquests of the Aryans were
greatly extended, and they formed a settled state of society among
the affluents of the Jumna and Ganges,