If you mean native American language, it is impossible for anyone today to find the answer. The native languages that we know today in the Americas evolved very slowly over many tens of thousands (even hundreds of thousands) of years from very ancient prehistoric languages spoken in north-East Asia and during the migrations of native people from Asia into the Americas.
These prehistoric languages are not known, but they evolved into the ancestor languages of every language spoken by native Americans. There were probably many waves of migrations represented today by the major language families: Je-Tupi-Carib, Proto-Athapaskan, Proto-Algonkian, Proto-Siouan, Proto-Uto-Aztecan, Macro-Tucanoan, Maya-Chipaya-Yunga and many more.
We can never know which of these is the oldest, but we can say with some certainty which are the newest, since these languages only developed in fairly recent times after tribes split and evolved different languages (such as Crow, a Siouan language that evolved from Hidatsa).
sanskrit
Tamil
It's actually not possible to know, since all Indian languages are older than writing.
Indian is not a language.Chinese writing dates from about 5000 years ago.The oldest writing in India is the Brahmi script, which dates from about 2500 years ago.
the oldest known indian cultural periiod was the mississippian period
As my knowledge the tamil is oldest language among dravidian language
Tamil is considered to be the oldest language with current
no tamil is the oldest and fully completed language in the world.
The oldest word in the English language is town.
sanskrit is the oldest language and it is still in use in HINDI rituals
Indian ocean
tamil language