Structures are clearly visible in the murky waters
Satellite Photos of the Bridge Between Ramesvaram and Sri Lanka
When I had visited Ramesvaram several years ago, and more recently in 2002, I was told that you could see the line of rocks that lead to Ramaesvaram to Sri Lanka that had been the bridge that Lord Rama had built for him and his army to go to Lanka in search for Sita. These rocks were said to be just under the surface of the water. Then when these photos were published, I was not surprised, but nonetheless fascinated by the relevancy of what they revealed. The captions of the photos, as found on Indolink.com:
Space images taken by NASA (from the NASA Digital Image Collection) reveal the mysterious ancient bridge in the Palk Strait between India and Sri Lanka. The recently discovered bridge, currently named as Adamīs Bridge, is made of chain of shoals, c.18 mi (30 km) long.
The unique curvature of the bridge and composition by age reveals that it is man made. The legends as well as Archeological studies reveal that the first signs of human inhabitants in Sri Lanka date back to a primitive age, about 17,50,000 years ago and the bridge's age is also almost equivalent.
This information is a crucial aspect for an insight into the mysterious legend called Ramayana, which was supposed to have taken place in Treta Yuga (more than 17,00,000 years ago).
In this epic, there is a mentioning about a bridge, which was built between Rameshwaram (India) and the Sri Lankan coast under the supervision of a dynamic and invincible figure called Rama who is supposed to be the incarnation of the Supreme Being.

Major anthropology find reported in India
CALCUTTA, India, Sept. 8 (UPI) -- Scientists report they have found evidence of the oldest human habitation in India, dating to 2 million years, on the banks of the Subarnarekha River.
The 30-mile stretch between Ghatshila in the province of Jharkhand and Mayurbhanj in Orissa has reportedly yielded tools that suggest the site could be unique in the world, with evidence of human habitation without a break from 2 million years ago to 5,000 B.C.
Anthropologists S. Chakraborty and Robin Barron told the Calcutta Telegraph: "There are no signs of terra incognito (a break in the continuum) in the Subarnarekha valley, unlike any other site in India. Some of the heavier tools resemble those found in the East African stone-age shelters, used by the Australopithecus."
Chakraborty said the uninterrupted habitation could make the site more important than even the Aldovai Gorge in East Africa, the Somme Valley of France, Stonehenge in England, the Narmada basin in Madhya Pradesh and the Velamadurai-Pallavaram rectangle in Tamil Nadu.
Baron further stated that this new find will be a mile stone. Its quite possible that this might be linked with Vedic culture. But for this time we must leave as it is till be get further evidence.
Ancient seals found at Mehrgrah excavation site
The French excavations at Mehrgarhhas unearthed 160 ancient seals.The seals are said to be 6,700 years old and were probably used to stamp goods that were to be exported. The seals had the picture of Lord Rama. Some artifacts found suggest to linked to aryan phase. Yet an another blow to Aryan invasion theory.