ISRO scientists create first undersea map of complete Ram Setu.

99.98 percent of the Ram Setu, a 29-kilometer stretch of limestone shoals, is buried in shallow waters.

Ram Setu spans from Dhanushkodi, Rameshwaram Island in India to the Mannar Island of Sri Lanka.

The mapping exercise has led to the creation of the first ever undersea map of the entire 29 km bridge, showing its height as 8 mt from the seabed.