The site gained attention for its Bronze Age solid-disk wheel carts, found in 2018,[1] which were interpreted by some as horse-pulled "chariots".

[4][1][note 2] According to Asko Parpola these finds were ox-pulled carts, indicating that these burials are related to an early Aryan migration of Proto-Indo-Iranian speaking people into the Indian subcontinent,[6] "forming then the ruling elite of a major Late Harappan settlement.

[news 4] The 2005-06 excavation headed by D. V. Sharma, ASI found more than a hundred burials (no coffins) tentatively dated c. 2200–1800 BCE.

placed near the head, with dish-on-stand usually placed below the hip area as well as flask-shaped vessels, terracotta figurines, gold bracelets and copper bangles, beads of semi-precious stones (two necklaces of long barrel shape), steatite, faience, and glass.

Trial excavations conducted at Sinauli in March–May 2018 (about 100 m from the 2005-06 site) have yielded the remains of several coffin burials and three full-sized carts.

[news 2] Body of an adult man inside the coffin: oriented in NW-SE direction (head facing NW).

The pit also included a shield (decorated with geometrical patterns in copper), a torch, an antenna sword, a digger, hundreds of beads and a variety of pots.

Burial goods: 10 red vases with flared rims, four bowls, two basins, a thin "symbolic" antenna sword, bow and arrows.

[news 2] The carts[4][1][note 2] were presented by Sanjay Kumar Manjul, director of the excavations and of ASI, as chariots used in war, similar to Indo-Aryan technology.

[1][news 1] This would require oxen to pull the heavy carts, which were unfit for use in battle, in contrast to the horse-pulled chariots introduced by the Indo-Aryans.

[1][news 1][note 5] According to Michael Witzel, rejecting the identification as chariots, "[t]his find may point to the survival of an extra-Harappan organized society.

"[4] According to Asko Parpola, the carts must have been ox-pulled, and are indications of an early Aryan migration of Proto-Indo-Iranian speaking people[6] from the Sintashta culture[9] into the Indian subcontinent, "forming then the ruling elite of a major Late Harappan settlement,"[7][note 1] predating the migrations of pre- and proto-Rig Vedic people.

Parpola: It seems, then, that the earliest Aryan-speaking immigrants to South Asia, the Copper Hoard people, came with bull-drawn carts (Sanauli and Daimabad) via the BMAC and had Proto-Indo-Iranian as their language.

They were, however, soon followed (and probably at least partially absorbed) by early Indo-Aryans [...] The dramatic new discovery of cart burials dated to c. 1900 at Sanauli [...] support my proposal of a pre-Ṛgvedic wave (now set of waves) of Aryan speakers arriving in South Asia and their making contact with the Late Harappans.