Kaveri 101

See the map to Identify the 4 major reservoirs in Karnataka :
Hemavathy, Harangi, KRS and Kabini. Inflows and Outflows to all 4
reservoirs are monitored and known and this forms the basis of all
calculations

The river flows into TN and at Biligundlu there is a measuring
station that tells you how much water flows into TN from Karnataka

The water that flows into the river downstream of KRS and Kabini is
measured at Biligundlu , is expected to flow in from about 22,000sqm
and in an average year can contribute about 80TMC.

About 740TMC is the total water that is expected to flow into the
river (from all states)

Of this the following allocations have been made (the states are
entitled to the following volumes of water

The
total inflows into the
river from Karnataka is 462TMC. Of the 462 TMC, Karnataka can keep
270TMC for itself and has to give TN 192 TMC (this is measured at
Biligundlu). For the
purpose of this post, we assume that the basis of this split is
agreed upon (270 keep, 192 give)

So
if you see the only real numbers that matter are, irrespective of
rainfall across the catchment, based on the total inflows in
Karnataka,

What
Karnataka keeps                                           270

—————————–                          =              ——

What
Karnataka gives TN                                      192