The Meru script which is the proto-Indus script known from the symbolic representations among the Harappan seals from the Southeast Asia

The Indus script, also known as the Harappan script, is a corpus of symbols transformed by the Indus Valley Civilisation, but it´s true origin is in hidden among the valleys of eastern Argentina and central Chile in South America. Most inscriptions containing these symbols are extremely short, however they are part of the meru script #Meruscript making its symbols constitute a writing system used to record the as yet unidentified language which we call the Meru language #Merulanguage. Here are some examples:

Above - The Meru script inscription approximately 30 kms NE of the center of modern Mendoza, Argentina. It is a part of the geoartscene which had been built in form of a geoglyph before 40,000 years BP.

By 1977 at least 2,906 inscribed objects with legible inscriptions had been discovered,[19] and by 1992 a total of approx. 4,000 inscribed objects had been found.[7] Indus script symbols have primarily been found on stamp seals, pottery, bronze and copper plates, tools, and weapons.[20] The majority of the textual corpus consists of seals, impressions of such seals, and graffiti markings inscribed on pottery.[21] No extant examples of the Indus script have been found on perishable organic materials like papyrus, paper, textiles, leaves, wood, or bark.[20]

Early Harappan Early examples of the symbol system are found during the Early Harappan period of the Indus civilisation, dated to possibly as early as the 35th century BCE.[22][23] Pottery inscriptions and clay impressions of inscribed Harappan seals have also been found from the Kot Diji phase of the Early Harappan period, dated to c. 2800–2600 BCE.[24]

The first publication of a seal with Harappan symbols dates to 1875 in a drawing by Alexander Cunningham.[6] By 1992 an est. 4,000 inscribed objects had been discovered,[7] some as far afield as Mesopotamia.

And one more proto-Sanskrit example from Peru which pertains to the story of Ramayana, which speaks about the lord Rama and his travel from the modern central Chile towards modern Nicaragua:

Why NASA was asked to help in resolution of the Nazca lines enigma

The Nazca line Project was a small part of the oldest mathematical, geographical and geoartistic experiment in the history of the humanity. Yet discovery of the sophisticated system of recording distances, measering angles of a flight of the vessles, etc. has been baffling Europeans since Pedro Cieza de León in his book of 1553 described them as trail markers. First lines were probably drawn in the desert at the remote time (approx. 2.8 mln years BP) when the concept of documenting the mega-chakana was created. The megachakana is a symbol of the advanced civilization (since approx. 45 mln years BP) which centered its design where Mt. Meru in the perfect axial location rests a kilometer under calm waters of the Pacifc Ocean; it was measured, dimensioned and recorded with North direction pointing in our East direction, why? because the image of the Architect of the Universe is located near Mendoza, Argentina in such a way that to his right lies #Lanka of the fame of Ravana from #ramayana, and to his left lies the 2.5 kms 1.8 mile high pyramid #dhayanalinga in Antarctic, both 5,373 kms 3,336 miles of distance, forming with base of 4995 kms miles the largest isocoles triangle known to humanity during the last 34 mln years. Even though the megachakana has a form of equilateral cross, the principal direction was pointing towards the east. We might imagine that Ravana, the winged deity from epic Ramayana, used this codified information while he had overflown over these lines on his way from modern Chile to Ometepe Island in Nicaragua where his palace Lanka was located. Probably Rama with Sita and vanaras returning from Lanka to Ayodhya (modern city of Mendoza, Argentina) used the markers during their voyage, even though Ramayana had not mentioned this fact.

Later many different lines were added on; the last lines were created by indigenous living in the area probably around 2000 yr BP. An explanation was beyond the reach of the mind of a poorly educated invaders in 16-17th century; subjugating and controling reluctant subjects, and destroying evidence of the existence the 'higher culture' was their objective. In a newly 'discovered' land this policy has lasted almost 500 years duration since the ´discovery´ of the Nazca lines. The Nazca line Project was a small part of the oldest mathematical, geographical and geoartistic experiment in the proto-history of the humanity since 43 mln years BP. However its importance is being attacked by closed-minded critics who would not accept the idea that a more advanced civilization was leaving its small sketches on the surface of our planet to make life easier for them and for us (whenever we will figure out how to use them).