Chamarajanagar district in the context of "Mysore District"

The Nīlgiris district (Tamil: [n̪iːlɐɡiɾi]) is one of the 38 districts in the southern Indian state of Tamil Nadu. Nīlagiri (lit. 'Blue Mountains') is the name given to a range of mountains spread across the borders among the states of Tamil Nadu, Karnataka and Kerala. The Nilgiri Hills are part of a larger mountain chain known as the Western Ghats. Their highest point is the mountain of Doddabetta, height 2,637 m. The district is contained mainly within the Nilgiri Mountains range. The administrative headquarters is located at Ooty (Ootacamund or Udhagamandalam). The district is bounded by Coimbatore to the south, Erode to the east, and Chamarajnagar district of Karnataka and Wayanad district of Kerala to the north. As it is located at the junction of three states, namely, Tamil Nadu, Kerala, and Karnataka, significant Malayali and Kannadiga populations reside in the district. Nilgiris district is known for natural mines of Gold, which is also seen in the other parts of Nilgiri Biosphere Reserve extended in the neighbouring states of Karnataka and Kerala too.

Nilgiris district ranked first in a comprehensive Economic Environment index ranking districts in Tamil Nadu (except Chennai district) prepared by the Institute for Financial Management and Research in August 2009. Tea and coffee plantations have been important to its economy. As of 2011, the Nilgiris district had a population of 735,394, with a sex-ratio of 1,042 females for every 1,000 males.

Wayanad district (Malayalam: [ʋɐjɐnaːɖɨ̆]), or Wynad, is a district in the north-east of the Indian state of Kerala, with its administrative headquarters at the municipality of Kalpetta. It is the only plateau in Kerala. The Wayanad Plateau forms a continuation of the Mysore Plateau, the southern portion of the Deccan Plateau. It is set high in the Western Ghats with altitudes ranging from 700 to 2,100 meters. Vellari Mala, a 2,240 m (7,349 ft) high peak situated on the trijunction of Wayanad, Malappuram, and Kozhikode districts, is the highest point in Wayanad district. The district was formed on 1 November 1980 as the 12th district in Kerala, by carving out areas from Kozhikode and Kannur districts. An area of 885.92 km in the district is forested. Wayanad has three municipal towns—Kalpetta, Mananthavady and Sulthan Bathery. There are many indigenous tribes in this area. The Kabini River, a tributary of the Kaveri River, originates at Wayanad. Wayanad district, along with the Chaliyar valley in the neighbouring Nilambur (Eastern Eranad region) in Malappuram district, is known for natural gold fields, which are also seen in other parts of the Nilgiri Biosphere Reserve. The Chaliyar river, which is the fourth longest river of Kerala, originates on the Wayanad plateau. The historically important Edakkal Caves are located in Wayanad district.

Wayanad district is bordered by Karnataka (Kodagu, Chamarajanagar and Mysore districts) to the north and north-east, Tamil Nadu (Nilgiris district) to the south-east (it is the only district that shares border with both the neighbouring states of Kerala), Malappuram to the south, Kozhikode to the south-west and Kannur to the north-west. Pulpally in Wayanad boasts the only Lava-Kusha temple in Kerala and Vythiri has the only mirror temple in Kerala, which is a Jain temple. Varambetta mosque is the oldest Muslim mosque of Wayanad. Wayanad is famous for its role in the Cotiote War, where Pazhassi Raja with the help of the Kurichya tribe in association with Hindus and Muslims of the Malabar region launched a revolt against the British. Kaniyambetta and Muttil Panchayaths are the centrally located Panchayaths with the best access from all corners of Wayanad, while Tavinjal Panchayath is on the northeast border with Kannur district. The edicts found in the caves of Ambukuthi Mala are evidence that occupation dates from the beginning of the New Age Civilisation.