What is the Hogenekkal row all about?

HOGENEKKAL: Where is Hogenekkal?

It is situated 150 km northeast of Bangalore and 350 km southwest of Chennai.

What is the origin of the controversy?

It started as a minor claim over a river islet. Now claims and counter-claims have transformed it into a border dispute covering the Tamil Nadu districts of Dharmapuri and Krishnagiri bordering Karnataka.

What is the population the drinking water scheme would benefit?

The Tamil Nadu government says the project will take shape by 2021 and will ultimately benefit over four million people by 2036.

Who is funding it?

The Japan Bank of International Cooperation has funded 85 percent of the project by promising to dole out Rs.13.3 billion through a soft loan.

What is Karnataka objecting to?

Bangalore residents have been told that the Hogenekkal scheme would affect their water supply.

Why are the Tamils protesting?

Karnataka is claiming what is rightfully Tamil Nadu's -- is the Tamil refrain.