List of constituencies of the Tamil Nadu Legislative Assembly
The state of Tamil Nadu has operated a Unicameral system since 1 November 1986. The Tamil Nadu Legislative Assembly alone has powers to legislate laws covering state subjects., it comprises members from 235 constituencies, of whom 234 are democratically elected using the First-past-the-post system. The remaining member is nominated as a representative of the Anglo Indian community. The presiding officer of the Assembly is called the Speaker. The term of the Assembly is five years unless it is dissolved earlier.
List of constituencies since 2007
Constituencies were delimited in 2007 based on the 2001 Census of India and following draft proposals. Some constituencies are reserved for candidates from the Scheduled Castes and Scheduled Tribes. The first general elections following the delimitation exercise were those of 2011.| Schedule No. | Constituency | District | Reserved | Lok sabha constituency | - |
| 1 | Gummidipoondi | Tiruvallur | - | Tiruvallur | - |
| 2 | Ponneri | Tiruvallur | SC | Tiruvallur | - |
| 3 | Tiruttani | Tiruvallur | - | Arakkonam | - |
| 4 | Thiruvallur | Tiruvallur | - | Tiruvallur | - |
| 5 | Poonamallee | Tiruvallur | SC | Tiruvallur | - |
| 6 | Avadi | Tiruvallur | - | Tiruvallur | - |
| 7 | Maduravoyal | Chennai | - | Sriperumbudur | - |
| 8 | Ambattur | Chennai | - | Sriperumbudur | - |
| 9 | Madavaram | Chennai | - | Tiruvallur | - |
| 10 | Thiruvottiyur | Chennai | - | North chennai | - |
| 11 | Dr. Radhakrishnan Nagar | Chennai | - | North Chennai | - |
| 12 | Perambur | Chennai | - | North Chennai | - |
| 13 | Kolathur | Chennai | - | North Chennai | - |
| 14 | Villivakkam | Chennai | - | Central Chennai | - |
| 15 | Thiru. Vi. Ka. Nagar | Chennai | SC | North Chennai | - |
| 16 | Egmore | Chennai | SC | Central Chennai | - |
| 17 | Royapuram | Chennai | - | North Chennai | - |
| 18 | Harbour | Chennai | - | Central chennai | - |
| 19 | Chepauk-Thiruvallikeni | Chennai | - | Central Chennai | - |
| 20 | Thousand Lights | Chennai | - | Central Chennai | - |
| 21 | Anna Nagar | Chennai | - | Central Chennai | - |
| 22 | Virugambakkam | Chennai | - | South Chennai | - |
| 23 | Saidapet | Chennai | - | South Chennai | - |
| 24 | T. Nagar | Chennai | - | South Chennai | - |
| 25 | Mylapore | Chennai | - | South Chennai | - |
| 26 | Velachery | Chennai | - | South Chennai | |
| 27 | Sholinganallur | Chennai | - | South Chennai | - |
| 28 | Alandur | Chennai | - | Sriperumbudur | - |
| 29 | Sriperumbudur | Kanchipuram | SC | Sriperumbudur | - |
| 30 | Pallavaram | Chengalpattu | - | Sriperumbudur | - |
| 31 | Tambaram | Chengalpattu | - | Sriperumbudur | - |
| 32 | Chengalpattu | Chengalpattu | - | Kanchipuram | - |
| 33 | Thiruporur | Chengalpattu | - | Kanchipuram | - |
| 34 | Cheyyur | Chengalpattu | SC | Kanchipuram | - |
| 35 | Maduranthakam | Chengalpattu | SC | Kanchipuram | - |
| 36 | Uthiramerur | Kanchipuram | - | Kanchipuram | - |
| 37 | Kancheepuram | Kanchipuram | - | Kanchipuram | - |
| 38 | Arakkonam | Ranipet | SC | Arakkonam | - |
| 39 | Sholingur | Ranipet | - | Arakkonam | - |
| 40 | Katpadi | Vellore | - | Arakkonam | - |
| 41 | Ranipet | Ranipet | - | Arakkonam | - |
| 42 | Arcot | Ranipet | - | Arakkonam | - |
| 43 | Vellore | Vellore | - | Vellore | - |
| 44 | Anaikattu | Vellore | - | Vellore | - |
| 45 | K. V. Kuppam | Vellore | SC | Vellore | - |
| 46 | Gudiyattam | Vellore | SC | Vellore | - |
| 47 | Vaniyambadi | Tirupattur | - | Vellore | - |
| 48 | Ambur | Tirupattur | - | Vellore | - |
| 49 | Jolarpet | Tirupattur | - | Tiruvannamalai | - |
| 50 | Tirupattur, Vellore | Tirupattur | - | Tiruvannamalai | - |
| 51 | Uthangarai | Krishnagiri | SC | Krishnagiri | - |
| 52 | Bargur | Krishnagiri | - | Krishnagiri | - |
| 53 | Krishnagiri | Krishnagiri | - | Krishnagiri | - |
| 54 | Veppanahalli | Krishnagiri | - | Krishnagiri | - |
| 55 | Hosur | Krishnagiri | - | Krishnagiri | - |
| 56 | Thalli | Krishnagiri | - | Krishnagiri | - |
| 57 | Palacode | Dharmapuri | - | Dharamapuri | - |
| 58 | Pennagaram | Dharmapuri | - | Dharmapuri | - |
| 59 | Dharmapuri | Dharmapuri | - | Dharmapuri | - |
| 60 | Pappireddippatti | Dharmapuri | - | Dharmapuri | - |
| 61 | Harur | Dharmapuri | SC | Dharmapuri | - |
| 62 | Chengam | Tiruvannamalai | SC | Tiruvannamalai | - |
| 63 | Tiruvannamalai | Tiruvannamalai | - | Tiruvannamalai | - |
| 64 | Kilpennathur | Tiruvannamalai | - | Tiruvannamalai | - |
| 65 | Kalasapakkam | Tiruvannamalai | - | Tiruvannamalai | - |
| 66 | Polur | Tiruvannamalai | - | Arani | - |
| 67 | Arani | Tiruvannamalai | - | Arani | - |
| 68 | Cheyyar | Tiruvannamalai | - | Arani | - |
| 69 | Vandavasi | Tiruvannamalai | SC | Arani | - |
| 70 | Gingee | Viluppuram | - | Arani | - |
| 71 | Mailam | Viluppuram | - | Arani | - |
| 72 | Tindivanam | Viluppuram | SC | Villupuram | - |
| 73 | Vanur | Viluppuram | SC | Villupuram | - |
| 74 | Villupuram | Viluppuram | - | Villupuram | - |
| 75 | Vikravandi | Viluppuram | - | Villupuram | - |
| 76 | Tirukkoyilur | Kallakurichi | - | Villupuram | - |
| 77 | Ulundurpettai | Kallakurichi | - | Villupuram | - |
| 78 | Rishivandiyam | Kallakurichi | - | Kallakurichi | - |
| 79 | Sankarapuram | Kallakurichi | - | Kallakurichi | - |
| 80 | Kallakurichi | Kallakurichi | SC | Kallakurichi | - |
| 81 | Gangavalli | Salem | SC | Kallakurichi | - |
| 82 | Attur | Salem | SC | Kallakurichi | - |
| 83 | Yercaud | Salem | ST | Kallakurichi | - |
| 84 | Omalur | Salem | - | Salem | - |
| 85 | Mettur | Salem | - | Dharmapuri | - |
| 86 | Edapadi | Salem | - | Salem | - |
| 87 | Sankagiri | Salem | - | Namakkal | - |
| 88 | Salem | Salem | - | Salem | - |
| 89 | Salem | Salem | - | Salem | - |
| 90 | Salem | Salem | - | Salem | - |
| 91 | Veerapandi | Salem | - | Salem | - |
| 92 | Rasipuram | Namakkal | SC | Namakkal | - |
| 93 | Senthamangalam | Namakkal | ST | Namakkal | - |
| 94 | Namakkal | Namakkal | - | Namakkal | - |
| 95 | Paramathi Velur | Namakkal | - | Namakkal | - |
| 96 | Tiruchengodu | Namakkal | - | Namakkal | - |
| 97 | Kumarapalayam | Namakkal | - | Erode | - |
| 98 | Erode | Erode | - | Erode | - |
| 99 | Erode | Erode | - | Erode | - |
| 100 | Modakkurichi | Erode | - | Erode | - |
| 101 | Perundurai | Erode | - | Tiruppur | - |
| 102 | Bhavani | Erode | - | Tiruppur | - |
| 103 | Anthiyur | Erode | - | Tiruppur | - |
| 104 | Gobichettipalayam | Erode | - | Tiruppur | - |
| 105 | Bhavanisagar | Erode | SC | Nilgiris | - |
| 106 | Dharapuram | Tiruppur | SC | Erode | - |
| 107 | Kangayam | Tiruppur | - | Erode | - |
| 108 | Avanashi | Tiruppur | SC | Nilgiris | - |
| 109 | Tiruppur | Tiruppur | - | Tiruppur | - |
| 110 | Tiruppur | Tiruppur | - | Tiruppur | - |
| 111 | Palladam | Tiruppur | - | Coimbatore | - |
| 112 | Udumalaipettai | Tiruppur | - | Pollachi | - |
| 113 | Madathukulam | Tiruppur | - | Pollachi | - |
| 114 | Udhagamandalam | Nilgiris | - | Nilgiris | - |
| 115 | Coonoor | Nilgiris | - | Nilgiris | - |
| 116 | Gudalur | Nilgiris | SC | Nilgiris | - |
| 117 | Mettupalayam | Coimbatore | - | Nilgiris | - |
| 118 | Sulur | Coimbatore | - | Coimbatore | - |
| 119 | Kavundampalayam | Coimbatore | - | Coimbatore | |
| 120 | Coimbatore North | Coimbatore | - | Coimbatore | - |
| 121 | Thondamuthur | Coimbatore | - | Pollachi | - |
| 122 | Coimbatore | Coimbatore | - | Coimbatore | - |
| 123 | Singanallur | Coimbatore | - | Coimbatore | - |
| 124 | Kinathukadavu | Coimbatore | - | Pollachi | - |
| 125 | Pollachi | Coimbatore | - | Pollachi | - |
| 126 | Valparai | Coimbatore | SC | Pollachi | - |
| 127 | Palani | Dindigul | - | Dindigul | - |
| 128 | Oddanchatram | Dindigul | - | Dindigul | - |
| 129 | Athoor | Dindigul | - | Dindigul | - |
| 130 | Nilakottai | Dindigul | SC | Dindigul | - |
| 131 | Natham | Dindigul | - | Dindigul | - |
| 132 | Dindigul | Dindigul | - | Dindigul | - |
| 133 | Vedasandur | Dindigul | - | Karur | - |
| 134 | Aravakurichi | Karur | - | Karur | - |
| 135 | Karur | Karur | - | Karur | - |
| 136 | Krishnarayapuram | Karur | SC | Karur | - |
| 137 | Kulithalai | Karur | - | Perambalur | - |
| 138 | Manapaarai | Tiruchirappalli | - | Karur | - |
| 139 | Srirangam | Tiruchirappalli | - | Tiruchirappalli | - |
| 140 | Tiruchirappalli | Tiruchirappalli | - | Tiruchirappalli | - |
| 141 | Tiruchirappalli | Tiruchirappalli | - | Tiruchirappalli | - |
| 142 | Thiruverumbur | Tiruchirappalli | - | Tiruchirappalli | - |
| 143 | Lalgudi | Tiruchirappalli | - | Perambalur | - |
| 144 | Manachanallur | Tiruchirappalli | - | Perambalur | - |
| 145 | Musiri | Tiruchirappalli | - | Perambalur | - |
| 146 | Thuraiyur | Tiruchirappalli | SC | Perambalur | - |
| 147 | Perambalur | Perambalur | SC | Perambalur | - |
| 148 | Kunnam | Perambalur | - | Chidambaram | - |
| 149 | Ariyalur | Ariyalur | - | Chidambaram | - |
| 150 | Jayankondam | Ariyalur | - | Chidambaram | - |
| 151 | Tittakudi | Cuddalore | SC | Cuddalore | - |
| 152 | Vriddhachalam | Cuddalore | - | Cuddalore | - |
| 153 | Neyveli | Cuddalore | - | Cuddalore | - |
| 154 | Panruti | Cuddalore | - | Cuddalore | - |
| 155 | Cuddalore | Cuddalore | - | Cuddalore | - |
| 156 | Kurinjipadi | Cuddalore | - | Cuddalore | - |
| 157 | Bhuvanagiri | Cuddalore | - | Chidambaram | - |
| 158 | Chidambaram | Cuddalore | - | Chidambaram | - |
| 159 | Kattumannarkoil | Cuddalore | SC | Chidambaram | - |
| 160 | Sirkazhi | Nagapattinam | SC | Mayiladuthurai | - |
| 161 | Mayiladuthurai | Nagapattinam | - | Mayiladuthurai | - |
| 162 | Poompuhar | Nagapattinam | - | Mayiladuthurai | - |
| 163 | Nagapattinam | Nagapattinam | - | Nagapattinam | - |
| 164 | Kilvelur | Nagapattinam | SC | Nagapattinam | - |
| 165 | Vedaranyam | Nagapattinam | - | Nagapattinam | - |
| 166 | Thiruthuraipoondi | Thiruvarur | SC | Nagapattinam | - |
| 167 | Mannargudi | Thiruvarur | - | Thanjavur | - |
| 168 | Thiruvarur | Thiruvarur | - | Nagapattinam | - |
| 169 | Nannilam | Thiruvarur | - | Nagapattinam | - |
| 170 | Thiruvidaimarudur | Thanjavur | SC | Mayiladuthurai | - |
| 171 | Kumbakonam | Thanjavur | - | Mayiladuthurai | - |
| 172 | Papanasam | Thanjavur | - | Mayiladuthurai | - |
| 173 | Thiruvaiyaru | Thanjavur | - | Thanjavur | - |
| 174 | Thanjavur | Thanjavur | - | Thanjavur | - |
| 175 | Orathanadu | Thanjavur | - | Thanjavur | - |
| 176 | Pattukkottai | Thanjavur | - | Thanjavur | - |
| 177 | Peravurani | Thanjavur | - | Thanjavur | - |
| 178 | Gandharvakottai | Pudukkottai | SC | Tiruchirappalli | - |
| 179 | Viralimalai | Pudukkottai | - | Karur | - |
| 180 | Pudukkottai | Pudukkottai | - | Tiruchirappalli | - |
| 181 | Thirumayam | Pudukkottai | - | Sivaganga | - |
| 182 | Alangudi | Pudukkottai | - | Sivaganga | - |
| 183 | Aranthangi | Pudukkottai | - | Ramanathapuram | - |
| 184 | Karaikudi | Sivaganga | - | Sivaganga | - |
| 185 | Tiruppattur, Sivaganga | Sivaganga | - | Sivaganga | - |
| 186 | Sivaganga | Sivaganga | - | Sivaganga | - |
| 187 | Manamadurai | Sivaganga | SC | Sivaganga | - |
| 188 | Melur | Madurai | - | Madurai | - |
| 189 | Madurai East | Madurai | - | Madurai | - |
| 190 | Sholavandan | Madurai | SC | Theni | - |
| 191 | Madurai North | Madurai | - | Madurai | - |
| 192 | Madurai South | Madurai | - | Madurai | - |
| 193 | Madurai Central | Madurai | - | Madurai | - |
| 194 | Madurai West | Madurai | - | Madurai | - |
| 195 | Thiruparankundram | Madurai | - | Virudhunagar | - |
| 196 | Tirumangalam | Madurai | - | Virudhunagar | - |
| 197 | Usilampatti | Madurai | - | Theni | - |
| 198 | Andipatti | Theni | - | Theni | - |
| 199 | Periyakulam | Theni | SC | Theni | - |
| 200 | Bodinayakanur | Theni | - | Theni | - |
| 201 | Cumbum | Theni | - | Theni | - |
| 202 | Rajapalayam | Virudhunagar | - | Tenkasi | - |
| 203 | Srivilliputhur | Virudhunagar | SC | Tenkasi | - |
| 204 | Sattur | Virudhunagar | - | Virudhunagar | - |
| 205 | Sivakasi | Virudhunagar | - | Virudhunagar | - |
| 206 | Virudhunagar | Virudhunagar | - | Virudhunagar | - |
| 207 | Aruppukkottai | Virudhunagar | - | Virudhunagar | - |
| 208 | Tiruchuli | Virudhunagar | - | Ramanathapuram | - |
| 209 | Paramakudi | Ramanathapuram | SC | Ramanathapuram | - |
| 210 | Tiruvadanai | Ramanathapuram | - | Ramanathapuram | - |
| 211 | Ramanathapuram | Ramanathapuram | - | Ramanathapuram | - |
| 212 | Mudhukulathur | Ramanathapuram | - | Ramanathapuram | - |
| 213 | Vilathikulam | Thoothukudi | - | Thoothukudi | - |
| 214 | Thoothukudi | Thoothukudi | - | Thoothukudi | - |
| 215 | Tiruchendur | Thoothukudi | - | Thoothukudi | - |
| 216 | Tiruvaikuntam | Thoothukudi | - | Thoothukudi | - |
| 217 | Ottapidaram | Thoothukudi | SC | Thoothukudi | - |
| 218 | Kovilpatti | Thoothukudi | - | Thoothukudi | - |
| 219 | Sankarankovil | Tenkasi | SC | Tenkasi | - |
| 220 | Vasudevanallur | Tenkasi | SC | Tenkasi | - |
| 221 | Kadayanallur | Tenkasi | - | Tenkasi | - |
| 222 | Tenkasi | Tenkasi | - | Tenkasi | - |
| 223 | Alangulam | Tenkasi | - | Tirunelveli | - |
| 224 | Tirunelveli | Tirunelveli | - | Tirunelveli | - |
| 225 | Ambasamudram | Tirunelveli | - | Tirunelveli | - |
| 226 | Palayamkottai | Tirunelveli | - | Tirunelveli | - |
| 227 | Nanguneri | Tirunelveli | - | Tirunelveli | - |
| 228 | Radhapuram | Tirunelveli | - | Tirunelveli | - |
| 229 | Kanniyakumari | Kanniyakumari | - | Kanniyakumari | - |
| 230 | Nagercoil | Kanniyakumari | - | Kanniyakumari | - |
| 231 | Colachal | Kanniyakumari | - | Kanniyakumari | - |
| 232 | Padmanabhapuram | Kanniyakumari | - | Kanniyakumari | - |
| 233 | Vilavancode | Kanniyakumari | - | Kanniyakumari | - |
| 234 | Killiyoor | Kanniyakumari | - | Kanniyakumari | - |
| 235 | Nominated (Anglo-Indian community | - | - |