Karnataka

Madras and Mysore sign the 1892 Cauvery agreement

After an 1890 conference, the Madras Presidency and Mysore signed an agreement on the use of the Cauvery's waters.

Cauvery arbitration award on the Kannambadi dam

Arbitration under the 1892 agreement let Mysore build a Kannambadi dam smaller than it had planned; an appeal by Madras led to the 1924 agreement.

States Reorganisation redraws Madras State

Malabar and South Canara left Madras State while Kanyakumari district and Shenkottai taluk were added, leaving a Tamil-majority state.

Expiry of the 1924 Kaveri agreement

The 50-year Madras-Mysore agreement of 1924 on Kaveri waters expired, opening a long inter-state dispute with Karnataka.

Nilgiri Biosphere Reserve established, India's first

India's first biosphere reserve was created from the Nilgiri hills and nearby forests, stretching across Tamil Nadu, Kerala and Karnataka.

Cauvery Water Disputes Tribunal constituted

On a Supreme Court direction, the Union government set up a tribunal to adjudicate the Kaveri water dispute between Tamil Nadu, Karnataka, Kerala and Puducherry.

Cauvery tribunal issues interim award

The Cauvery Water Disputes Tribunal directed Karnataka to release 205 TMC ft of water a year to Tamil Nadu.

Anti-Tamil violence in Karnataka over Cauvery award

Mobs attacked Tamils in Bangalore, Mysore and other parts of southern Karnataka after the Cauvery interim award was gazetted.

Palar landmine blast by Veerappan's gang

A landmine attack by the sandalwood smuggler Veerappan near Palar killed 22 members of a police and forest team from Tamil Nadu.

Jayalalithaa fasts on the Marina over Cauvery water

Seeking Cauvery water from Karnataka for the kuruvai crop, Chief Minister Jayalalithaa went on a fast of about 80 hours beside the MGR memorial.

Cauvery River Authority set up

The Union government set up the Cauvery River Authority, chaired by the Prime Minister with the chief ministers of the basin states, to implement the interim award.

Veerappan kidnaps actor Rajkumar

Forest brigand Veerappan abducted Kannada film star Rajkumar from Gajanur in Erode district and held him for 108 days.

Jayalalithaa assets case transferred to Bangalore

On a DMK petition, the Supreme Court moved the disproportionate assets trial of J. Jayalalithaa from Chennai to a special court in Bangalore.

Veerappan killed in Operation Cocoon

The forest brigand Veerappan was killed by the Tamil Nadu Special Task Force near Dharmapuri, ending a decades-long manhunt.

Cauvery Water Disputes Tribunal final award

The Cauvery tribunal issued its final award allocating river water among Tamil Nadu, Karnataka, Kerala and Puducherry.

Hogenakkal Integrated Drinking Water Project

A Cauvery-based drinking water scheme for Dharmapuri and Krishnagiri districts was begun in 2008 amid objections from Karnataka and launched in 2013.

Western Ghats inscribed as a UNESCO World Heritage Site

The Western Ghats mountain range, which runs through western Tamil Nadu including the Nilgiris and Anamalai hills, became a World Heritage Site.

Jayalalithaa convicted in disproportionate assets case

A Bengaluru special court convicted Jayalalithaa, forcing her to resign; the Karnataka High Court acquitted her in 2015 and she returned as Chief Minister.

Supreme Court final verdict on Cauvery waters

The Supreme Court reduced Tamil Nadu's share of Cauvery water slightly and ordered a scheme for implementation, leading to the Cauvery Water Management Authority.

Cauvery Water Management Authority constituted

Following the Supreme Court's final Cauvery verdict, the Union government created the Cauvery Water Management Authority.