Abraham is generally accepted as the Hebrew patriarch of the Abrahamic religions, Judaism, Christianity and Islam, possibly living in the 2nd millennium BC. The name Abraham and its variants has been identified(a) in many cultures, although the existence of Abraham as a real historical person has been disputed.
Nevertheless, there have been a number of efforts to connect Abraham with the religion of ancient India(b) . The most publicised proponent of this view is Gene Matlock who offered his evidence in a paper titled Who was Abraham?(c)
He begins this document with three citations from ancient sources;
“In his History of the Jews, the Jewish scholar and theologian Flavius Josephus (37-100 A.D.), wrote that the Greek philosopher Aristotle had said: “…These Jews are derived from the Indian philosophers; they are named by the Indians Calani.” (Book I:22.)
Clearchus of Soli wrote, “The Jews descend from the philosophers of India. The philosophers are called in India Calanians and in Syria Jews. The name of their capital is very difficult to pronounce. It is called ‘Jerusalem.'”
“Megasthenes, who was sent to India by Seleucus Nicator, about three hundred years before Christ, and whose accounts from new inquiries are every day acquiring additional credit, says that the Jews ‘were an Indian tribe or sect called Kalani…'” (Anacalypsis, by Godfrey Higgins, Vol. I; p. 400.)”
Matlock believes that India ruled our prehistoric world including parts of America and furthermore. that Atlantis was located in South-East Mexico at San Lorenzo Tenochtitlan . In an attempt to link his Mexican location with Plato’s description of Atlantis, Matlock contends that the ‘elephants’ mentioned by him were the long-snouted tapirs of Meso-America!(e) Furthermore, he claims that there was a connection between India, the Phoenicians, Atlantis and Mexico.
However, Matlock by way of clarification added “My readers should know that the ‘Atlantis’ described in this book may not be the same as Plato’s ‘Atlantis’. I’m just proving that there was once a part of the world called ‘Atlantis’ – that a part of Mexico once had the Sanskrit name Atlán, Tlan or Toltán, whose citizens were known as Atlantecas and Atlantl.” He then continues with “if my ‘Atlantis’ is not the real ‘Atlantis’ no one will ever find the one Plato mentioned.”
Matlock’s widely quoted internet article(c) begins with the identification of Abraham and his wife Sarai with the Hindu god Brahma and his wife Saraisvati.
In 2000, Matlock published Jesus and Moses Are Buried in India, Birthplace of Abraham and the Hebrews, in which he develops this theme further.
A book supporting Matlock by the controversial Sri G. Ananda (Gregory Alexander) entitled Brahma: The God of Abraham  was published in 2014. However, the idea is hotly debated on the internet by all interested parties, Christian, Muslim and Hindu.
Roger M. Pearlman tackled the subject of Atlantis in Plato’s Atlantis Legend Resolution: Abraham is the Real Atlas . Apart from the unexpected identification of Abraham, he also equates Hercules with the biblical Samson and places the Pillars of Hercules at Gaza. Disturbingly, he suggests that Sodom can be identified as Atlantis. Then, for good measure, he maintains that Göbekli Tepe was founded by Noah‘s family!
Jason Colavito had a critical view(d) of the recent (2017) Turkish documentary, supported by the government, which claims that Göbekli Tepe was built by Telah, Abraham’s father, and destroyed by Abraham.
Roger M. Pearlman is a Torah scholar, who has written extensively on the reconciliation of the Torah with science. A number of his papers can be found on the academia.edu website.
He has also tackled the subject of Atlantis in Plato’s Atlantis Legend Resolution: Abraham is the Real Atlas (1596). Apart from the unexpected identification of Abraham, he also equates Hercules with the biblical Samson and places the Pillars of Hercules at Gaza! Disturbingly, he suggests that Sodom can be identified as Atlantis. Then, for good measure, he maintains that Gobekli Tape was founded by Noah’s family!
>On the subject of Abraham, I note that Gene Matlock claimed that “there are certain striking similarities between the Hindu god Brahma and his consort Saraisvati and the Jewish Abraham and Sarai that are more than mere coincidences.”(b)<
Perhaps I should mention that the superficial resemblance of Samson to Heracles was noted as far back as the time of Eusebius (Circa 300 AD)(a).