By Mark KinverEnvironment reporter, BBC News
After the devastation wrought by a drug on Asian vulture populations, a project hopes to begin releasing captive-bred birds into the wild by 2016.
The Saving Asia's Vultures from Extinction (Save) programme says it plans to release up to 25 birds into a 30,000-sq-km drug-free "safe zone".
Diclofenac - used by vets on cattle - was identified as causing a crash in vulture numbers and banned by India.
But, says Save, the version for human use is still given illegally to cattle.
Diclofenac was banned for use by vets and farmers in 2006 because of its effect on vultures that feed on livestock carcasses.