7.5 Karnataka Geography — Divisions, Districts, Climate, Soils & Wildlife
Key Takeaways
- Karnataka has 31 districts grouped into four revenue divisions — Bengaluru, Mysuru, Belagavi and Kalaburagi — each headed by a Divisional or Regional Commissioner.
- The seven districts of the Kalaburagi division form the Kalyana-Karnataka region with special status under Article 371(J), which is why the VAO recruitment runs a separate KK cadre.
- Rainfall ranges from over 3,000 mm on the Karavali to under 700 mm in parts of the northern Maidan, so one state contains both rainforest and a chronic drought belt.
- Karnataka has about 20% forest cover, five tiger reserves — Bandipur, Nagarahole, Bhadra, Kali and BRT — and the largest Asian elephant population of any Indian state.
- Bandipur was one of the first nine Project Tiger reserves in 1973, not the first; Jim Corbett in Uttarakhand holds that distinction.
Districts
Karnataka has 31 districts. The newest is Vijayanagara, carved out of Ballari — announced in November 2020 and brought into existence in 2021 — with Hosapete (Hospet) as its headquarters.
Major Districts
Karnataka has exactly four revenue divisions, each headed by a Divisional (Regional) Commissioner. There is no "Hubballi division" — Hubballi-Dharwad is a city in Dharwad district, which belongs to the Belagavi division.
| Revenue Division | Districts (9 / 8 / 7 / 7) |
|---|---|
| Bengaluru Division | Bengaluru Urban, Bengaluru Rural, Ramanagara, Chikkaballapura, Kolar, Tumakuru, Chitradurga, Davanagere, Shivamogga |
| Mysuru Division | Mysuru, Mandya, Hassan, Chamarajanagar, Kodagu, Chikkamagaluru, Dakshina Kannada, Udupi |
| Belagavi Division | Belagavi, Dharwad, Gadag, Haveri, Bagalkote, Vijayapura, Uttara Kannada |
| Kalaburagi Division | Kalaburagi, Bidar, Yadgir, Ballari, Vijayanagara, Raichur, Koppal |
The seven Kalaburagi-division districts are exactly the Kalyana-Karnataka region that enjoys special status under Article 371(J) — and exactly the districts covered by the separate KK cadre in the VAO notification.
Reading the Districts by Region
Grouping districts by their character makes both geography and current-affairs questions easier:
| Region | Districts | Character |
|---|---|---|
| Karavali (coastal) | Dakshina Kannada, Udupi, Uttara Kannada | Heavy rain, paddy and coconut, fisheries, New Mangalore port, banking origins (Canara, Syndicate, Corporation and Vijaya Banks all began here) |
| Malnad | Kodagu, Chikkamagaluru, Shivamogga, Hassan, parts of Uttara Kannada | Coffee, pepper, areca, cardamom, rubber; high rainfall; hydro projects |
| South Maidan (old Mysore) | Bengaluru Urban and Rural, Ramanagara, Kolar, Chikkaballapura, Tumakuru, Mandya, Mysuru, Chamarajanagar, Chitradurga, Davanagere | IT and industry around Bengaluru; sugarcane in Mandya; silk in Ramanagara; gold at Kolar; groundnut and ragi belt |
| North Maidan (Bombay-Karnataka) | Belagavi, Dharwad, Gadag, Haveri, Bagalkote, Vijayapura | Black soil, cotton, jowar, sugarcane; Hubballi-Dharwad as the commercial twin city; Vijayapura's Deccan monuments |
| Kalyana-Karnataka (Hyderabad-Karnataka) | Kalaburagi, Bidar, Yadgir, Raichur, Koppal, Ballari, Vijayanagara | Tur (pigeon pea) and jowar; limestone and cement; iron ore at Sandur; Article 371(J) special status; the state's most drought-prone belt |
Useful district superlatives: Bengaluru Urban is the most populous and most densely populated; Belagavi is the largest district by area; Kodagu is the smallest by population; Bidar is the northernmost and Chamarajanagar the southernmost; Vijayanagara is the newest.
Climate, Soils and the Agro-Climatic Zones
Climate and Soils
Climate
Karnataka's climate ranges from semi-arid (north) to humid tropical (coast and Malnad):
- Coastal (Karavali): humid, 3,000–4,000 mm rainfall; SW monsoon dominant
- Malnad: 2,000–5,000 mm; receives monsoon rainfall from the Arabian Sea branch
- Maidan: 500–1,000 mm; semi-arid, drought-prone (especially Kalyana Karnataka region)
- Southwest monsoon (June–September) is the primary rainfall source; retreating NE monsoon adds rain to parts of south interior Karnataka in October–November
Soils
- Red loams — most widespread; cover Maidan and plateau areas; suited for ragi, groundnut, pulses
- Laterites — Western Ghats foothills, Malnad; ideal for coffee, cashew, areca
- Black (regur) — patches in northern Karnataka (Bijapur, Bagalkote, Gulbarga); cotton
- Alluvial — narrow strips along river valleys
The Ten Agro-Climatic Zones and Their Crops
Karnataka is officially divided into ten agro-climatic zones, which is the framework the Agriculture Department uses and the reason the same state grows both coffee and cotton:
- Coastal zone — paddy, coconut, arecanut, cashew, fisheries.
- Hilly zone (Malnad) — coffee, pepper, cardamom, arecanut, rubber, paddy in valleys.
- Southern and Central Dry Zones — ragi, groundnut, pulses, mulberry; the classic rain-fed Maidan.
- Southern and Central Transition Zones — maize, paddy, sugarcane where irrigation reaches.
- Northern Dry Zone — the largest zone; jowar, tur, bajra, sunflower on black soil.
- Northern Transition Zone — cotton, jowar, groundnut.
- Eastern Dry Zone — around Bengaluru; ragi, vegetables, dairy, floriculture.
- North-Eastern Dry and Transition Zones — tur, jowar, cotton, limestone-based industry.
Crops Karnataka leads or nearly leads nationally: coffee (about 70% of India's output), mulberry raw silk (the largest producer), sandalwood, arecanut, ragi, tur, sunflower and coarse cereals generally. Karnataka is also the largest producer of coarse cereals among Indian states and a leading horticultural state.
Forests, Protected Areas and Wildlife
Wildlife and Forests
Karnataka has about 20% forest cover, including some of India's most important protected areas.
| Protected Area | District | Significance |
|---|---|---|
| Bandipur Tiger Reserve | Chamarajanagar | Part of the Nilgiri Biosphere Reserve; one of the first nine Project Tiger reserves (1973) — Jim Corbett, not Bandipur, was the first |
| Nagarhole (Rajiv Gandhi NP) | Kodagu/Mysuru | Tiger, elephant, leopard; part of Nilgiri Biosphere |
| Bhadra Wildlife Sanctuary | Chikmagalur/Shivamogga | Tiger reserve; Bhadra reservoir |
| Kudremukh National Park | Chikmagalur/Dakshina Kannada | Name means 'horse face' peak; shola-grassland mosaic |
| Bannerghatta National Park | Bengaluru Urban | Nearest to capital; biological park + sanctuary |
| Kali Tiger Reserve (formerly Anshi-Dandeli) | Uttara Kannada | Western Ghats evergreen forest; renamed after the Kali river in 2015; hornbills and melanistic (black) leopards |
| Biligiri Rangana Betta (BRT) Tiger Reserve | Chamarajanagar | Ecological bridge between the Western and Eastern Ghats; Soliga tribal habitat |
Key Wildlife
- Mammals: tiger, elephant, gaur (Indian bison), sambar, chital, sloth bear, leopard, wild dog (dhole), lion-tailed macaque (Western Ghats endemic)
- Birds: Malabar pied hornbill, great pied hornbill, peafowl, drongos
- Conservation programs: Project Tiger — Karnataka has five tiger reserves (Bandipur, Nagarahole, Bhadra, Kali and BRT) — and Project Elephant (Karnataka has the largest Asian elephant population in India)
The Protected-Area Picture in Full
Karnataka has five tiger reserves — Bandipur, Nagarahole (Rajiv Gandhi), Bhadra, Kali (formerly Anshi-Dandeli) and Biligiri Rangana Betta (BRT) — and a network of national parks and sanctuaries.
| Protected area | District | Note |
|---|---|---|
| Bandipur and Nagarahole | Chamarajanagar, Mysuru, Kodagu | Core of the Nilgiri Biosphere Reserve; contiguous with Mudumalai and Wayanad, forming India's largest elephant habitat |
| Kudremukh National Park | Chikkamagaluru, Dakshina Kannada, Udupi | Shola-grassland mosaic; Bhagavathi and Somavathi streams |
| Bannerghatta National Park | Bengaluru Urban | Biological park adjoining the capital |
| Anshi National Park / Kali Tiger Reserve | Uttara Kannada | Evergreen Western Ghats; hornbills, black leopards |
| Ranganathittu Bird Sanctuary | Mandya, on the Kaveri | Karnataka's best-known bird sanctuary; Salim Ali's advocacy secured its protection |
| Kokkarebellur, Magadi, Gudavi, Attiveri | Mandya, Gadag, Shivamogga, Uttara Kannada | Pelican and stork breeding sites |
| Daroji Bear Sanctuary | Ballari / Vijayanagara | Sloth bear habitat in the Hampi boulder landscape |
| Brahmagiri, Pushpagiri, Talakaveri | Kodagu | Kaveri headwater forests |
| Bhimgad | Belagavi | Barapede caves — the only known breeding site of Wroughton's free-tailed bat |
| Gudekote, Jayamangali Blackbuck Reserve | Vijayanagara, Tumakuru | Blackbuck and dry-scrub species |
Endemic and flagship species: lion-tailed macaque, Malabar giant squirrel, king cobra, Malabar pied hornbill, great pied hornbill, Nilgiri tahr and the Deccan blackbuck. Karnataka holds the largest Asian elephant population of any Indian state and one of the largest tiger populations.
The Western Ghats running through Karnataka form one of the world's eight "hottest" biodiversity hotspots and are inscribed as a UNESCO World Heritage Site (2012), with several of the serial sites lying in Karnataka.
Industry, Institutions and Transport by Region
- Bengaluru — IT and biotech, HAL, BEL, BEML, ISRO centres, the Indian Institute of Science, Kempegowda International Airport.
- Mysuru — silk, sandalwood oil, tourism, Infosys and software parks.
- Bhadravati — Visvesvaraya Iron and Steel; Hosapete–Sandur–Ballari — iron ore, JSW Steel at Toranagallu.
- Kalaburagi and Bagalkote — cement, on the state's limestone belt; Mandya and Belagavi — sugar; Davanagere — historically cotton mills.
- Mangaluru — MRPL refinery, New Mangalore port, fisheries and cashew processing; Karwar — Project Seabird naval base.
- Hubballi — headquarters of the South Western Railway; the commercial hub of north Karnataka.
Exam Angle
This section answers three question shapes: district-to-feature, protected-area-to-district and industry-to-town. Prioritise the four revenue divisions with their district lists (this is the single most-repeated administrative-geography item and the reason the KK cadre exists), the five tiger reserves, and the state superlatives. Guard against three baited answers: Karnataka is 6th by area and 8th by population; Bandipur was one of the first nine Project Tiger reserves and not the first; and Anshi-Dandeli is now Kali Tiger Reserve.
Key Takeaways
- Karnataka is the 6th largest state by area (8th by population), with four physiographic zones: Sahyadri (Western Ghats), Malnad, Maidan, Karavali
- Mullayanagiri (1,930 m) in Chikmagalur is the state's highest peak
- The 31 districts are grouped into four revenue divisions; the newest district is Vijayanagara, carved from Ballari in 2021
- East-flowing rivers (Kaveri, Krishna, Tungabhadra) drain into the Bay of Bengal; west-flowing rivers (Sharavathi with Jog Falls, Kali, Netravathi) drain into the Arabian Sea
- Karnataka's forests harbor iconic reserves — Bandipur, Nagarahole, Kudremukh, Bannerghatta, Bhadra, Kali — part of the Nilgiri Biosphere and Project Tiger network
How many districts does Karnataka have after the 2020 reorganization that created Vijayanagara district?
Karnataka's 31 districts are grouped into how many revenue divisions, and which division corresponds to the Kalyana-Karnataka region?
Which statement about Bandipur Tiger Reserve is accurate?