'There is no information on the people to be affected. According to the latest estimates, the number of villages to go under submergence now is 276 from Andhra Pradesh, 13 from Chhattisgarh and 10 from Orissa and the number of affected families is 27,798 in Andhra Pradesh, 1,372 in Chhattisgarh and 814 in Orissa,' the petitioner alleged.

The Rs.10,150-crore project would be built on the Godavari river in Andhra Pradesh.

The Andhra Pradesh government says the project will provide drinking water to 2.85 million people, produce 960 MW of power and give industry 23,500 million cubic feet of water.

The project first envisioned by the British rulers in 1941 has, however, been facing opposition since decades from local residents who fear displacement, as well as from Orissa and Chhattisgarh.

After completion of the project, in case of floods, the back water of the Godavari will flow to its tributaries Saberi and Sileru in Orissa and Chhattisgarh and submerge dozens of bordering villages.

Andhra Pradesh had said it will put embankments on the river but Orissa officials said that is not the solution.

Orissa has also filed a suit in the Supreme Court in February, seeking suspension of the construction work of the project.