List of constituencies of the Bihar Legislative Assembly

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The Bihar Legislative Assembly is the lower house of the bicameral legislature of the state of Bihar in Eastern India. Its seat is at Patna, the capital of the state and it sits for a term of five years unless it is dissolved early.: 72  Bihar is India's second largest state by population and the twelfth largest by area. The assembly was created in 1937 as an outcome of the split of the Bihar and Orissa Province, after the passage of the Government of India Act, 1935.

Bihar Legislative Assembly
17th Bihar Assembly
Type
Type
Lower house
of the Bihar Legislature
Term limits
5 years
Seats243
Elections
Voting system
First past the post
Last election
November 2025
Meeting place
Bihar State Assembly, Patna
Website
Bihar Legislative Assembly

Constituency boundaries are periodically redrawn by the delimitation commission which tries to keep them as geographically compact areas, and with due consideration to existing boundaries of administrative units. The lastest census is used to draw the boundaries and every assembly constituency has to be completely within a parliamentary constituency.: 4, Sect. 8–9  Since 2000, the Bihar Assembly has had 243 single-seat constituencies, each of which directly elects a representative: 71, Ch. III, Art. 170, Sect. 1  based on a first past the post election.

Since the independence of India from the United Kingdom in 1947, the Scheduled Castes (SC) and Scheduled Tribes (ST) have been given reservation status, guaranteeing political representation, and the Constitution lays down the general principles of positive discrimination for SCs and STs.: 137  According to the 2011 census of India the Scheduled Castes constitute 15.9%, while the Scheduled Tribes constitute 1.3% of the population of the state.: 6  The Scheduled Castes have been granted a reservation of 38 seats in the assembly, while 2 constituencies are reserved for candidates of the Scheduled Tribes.: 6 

History

Changes in the constituencies of the Bihar Legislative Assembly
Year Act/Order Explanation Total
seats 		SC-reserved seats ST-reserved seats Election(s)
1950, 1951 Delimitation of Parliamentary and Assembly Constituencies Order, 1951 The Indian Constitution came into effect and new constituencies were created. 276 0 24 1952
1956 States Reorganisation Act, 1956 Some parts of Bihar were transferred to West Bengal. 264 39 29 1957
1961 Delimitation of Parliamentary and Assembly Constituencies Order, 1961 There were changes in the number and reservation status of constituencies. Two-member constituencies were abolished. 318 40 32 1962
1966 Delimitation of Parliamentary and Assembly Constituencies Order, 1966: 419  There were changes to the number of seats reserved for SC and ST candidates. 318 45 29 1967
1969,
1972
1976 Delimitation of Parliamentary and Assembly Constituencies Order, 1976 There were changes in the number and reservation status of constituencies. 324 46 28 1977,
1980,
1985,
1990,
1995,
2000
2000 Bihar Reorganisation Act, 2000 The new state of Jharkhand was created from the southern parts of Bihar.

There were 324 assembly constituencies in undivided Bihar. After the split, 243 of them composed the reduced legislative assembly of the state.

243 39 0 2005 (February),
2005 (October)
2008 Delimitation Commission Order, 2008: 6  There were changes in the reservation status and area covered by constituencies. 243 38 2 2010,
2015,
2020,
2025

Constituencies

Reservation
  Scheduled Castes (SC)
  Scheduled Tribes (ST)
Constituencies of the Bihar Legislative Assembly: 74–96 
No. Name Reservation District Lok Sabha
constituency 		Electorate
(2025)
1 Valmiki Nagar None West Champaran Valmiki Nagar 331,447
2 Ramnagar SC 299,784
3 Narkatiaganj None 277,575
4 Bagaha 318,191
5 Lauriya 252,171
6 Nautan Paschim Champaran 286,639
7 Chanpatia 294,526
8 Bettiah 292,087
9 Sikta Valmiki Nagar 278,251
10 Raxaul East Champaran Paschim Champaran 286,131
11 Sugauli 283,696
12 Narkatiya 301,008
13 Harsidhi SC Purvi Champaran 274,415
14 Govindganj None 264,744
15 Kesaria 260,633
16 Kalyanpur 256,338
17 Pipra 336,303
18 Madhuban Sheohar 265,505
19 Motihari Purvi Champaran 292,635
20 Chiraia Sheohar 289,283
21 Dhaka 335,844
22 Sheohar Sheohar 304,871
23 Riga Sitamarhi 317,263
24 Bathnaha SC Sitamarhi 318,190
25 Parihar None 324,889
26 Sursand 316,116
27 Bajpatti 333,004
28 Sitamarhi 305,766
29 Runnisaidpur 287,491
30 Belsand Sheohar 261,773
31 Harlakhi Madhubani Madhubani 276,152
32 Benipatti 290,195
33 Khajauli Jhanjharpur 293,616
34 Babubarhi 308,096
35 Bisfi Madhubani 328,813
36 Madhubani 339,367
37 Rajnagar SC Jhanjharpur 313,288
38 Jhanjharpur None 320,142
39 Phulparas 320,615
40 Laukaha 336,961
41 Nirmali Supaul Supaul 304,066
42 Pipra 305,165
43 Supaul 293,575
44 Triveniganj SC 304,346
45 Chhatapur None 333,518
46 Narpatganj Araria Araria 336,584
47 Raniganj SC 342,519
48 Forbesganj None 360,102
49 Araria 334,656
50 Jokihat 303,837
51 Sikti 302,777
52 Bahadurganj Kishanganj Kishanganj 292,251
53 Thakurganj 301,120
54 Kishanganj 283,172
55 Kochadhaman 250,697
56 Amour Purnia 312,866
57 Baisi 286,869
58 Kasba Purnia 287,959
59 Banmankhi SC 302,101
60 Rupauli None 298,673
61 Dhamdaha 314,949
62 Purnia 290,893
63 Katihar Katihar Katihar 262,016
64 Kadwa 280,637
65 Balrampur 348,537
66 Pranpur 313,606
67 Manihari ST 297,676
68 Barari None 279,756
69 Korha SC Purnia 298,867
70 Alamnagar None Madhepura Madhepura 360,264
71 Bihariganj 327,455
72 Singheshwar SC Supaul 329,826
73 Madhepura None Madhepura 345,596
74 Sonbarsha SC Saharsa 302,061
75 Saharsa None 370,709
76 Simri Bakhtiarpur Khagaria 336,967
77 Mahishi Madhepura 288,096
78 Kusheshwar Asthan SC Darbhanga Samastipur 259,912
79 Gaura Bauram None Darbhanga 261,738
80 Benipur 300,497
81 Alinagar 285,708
82 Darbhanga Rural 290,287
83 Darbhanga 325,503
84 Hayaghat Samastipur 253,557
85 Bahadurpur Darbhanga 310,848
86 Keoti Madhubani 298,961
87 Jale 314,779
88 Gaighat Muzaffarpur Muzaffarpur 322,326
89 Aurai 311,664
90 Minapur 282,903
91 Bochahan SC 286,053
92 Sakra 273,397
93 Kurhani None 306,238
94 Muzaffarpur 316,880
95 Kanti Vaishali 319,372
96 Baruraj 278,389
97 Paroo 313,093
98 Sahebganj 301,544
99 Baikunthpur Gopalganj Gopalganj 308,361
100 Barauli 284,192
101 Gopalganj 297,051
102 Kuchaikote 300,132
103 Bhore SC 337,564
104 Hathua None 291,165
105 Siwan Siwan Siwan 319,165
106 Ziradei 276,435
107 Darauli SC 308,041
108 Raghunathpur None 294,703
109 Daraunda 315,729
110 Barharia 310,094
111 Goriakothi Maharajganj 331,190
112 Maharajganj 302,398
113 Ekma Saran 291,675
114 Manjhi 294,611
115 Baniapur 317,424
116 Taraiya 298,532
117 Marhaura Saran 271,541
118 Chapra 325,112
119 Garkha SC 311,162
120 Amnour None 250,779
121 Parsa 270,589
122 Sonpur 290,014
123 Hajipur Vaishali Hajipur 335,905
124 Lalganj 344,150
125 Vaishali Vaishali 337,584
126 Mahua Hajipur 295,843
127 Raja Pakar SC 281,602
128 Raghopur None 345,491
129 Mahnar 301,439
130 Patepur SC Ujiarpur 300,968
131 Kalyanpur Samastipur Samastipur 324,932
132 Warisnagar None 324,904
133 Samastipur 275,257
134 Ujiarpur Ujiarpur 310,269
135 Morwa 269,034
136 Sarairanjan 283,203
137 Mohiuddinnagar 260,541
138 Bibhutipur 275,296
139 Rosera SC Samastipur 331,466
140 Hasanpur None Khagaria 289,760
141 Cheria-Bariarpur Begusarai Begusarai 272,019
142 Bachhwara 312,121
143 Teghra 302,549
144 Matihani 354,216
145 Sahebpur Kamal 263,289
146 Begusarai 342,217
147 Bakhri SC 294,566
148 Alauli Khagaria Khagaria 266,664
149 Khagaria None 261,473
150 Beldaur 323,717
151 Parbatta 317,609
152 Bihpur Bhagalpur Bhagalpur 266,461
153 Gopalpur 276,973
154 Pirpainti SC 345,572
155 Kahalgaon None 344,690
156 Bhagalpur 344,577
157 Sultanganj Banka 319,989
158 Nathnagar Bhagalpur 337,948
159 Amarpur Banka Banka 298,837
160 Dhoraiya SC 307,230
161 Banka None 260,299
162 Katoria ST 270,298
163 Belhar None 319,717
164 Tarapur Munger Jamui 331,313
165 Munger Munger 341,931
166 Jamalpur 330,571
167 Suryagarha Lakhisarai 358,028
168 Lakhisarai 391,944
169 Sheikhpura Sheikhpura Jamui 263,432
170 Barbigha Nawada 232,576
171 Asthawan Nalanda Nalanda 304,992
172 Biharsharif 389,706
173 Rajgir SC 299,852
174 Islampur None 303,226
175 Hilsa 304,842
176 Nalanda 325,999
177 Harnaut 319,850
178 Mokama Patna Munger 286,050
179 Barh 292,909
180 Bakhtiarpur Patna Sahib 298,087
181 Digha 458,367
182 Bankipur 379,402
183 Kumhrar 431,390
184 Patna Sahib 389,881
185 Fatuha 286,297
186 Danapur Pataliputra 376,759
187 Maner 334,256
188 Phulwari SC 386,351
189 Masaurhi 326,914
190 Paliganj None 285,778
191 Bikram 310,092
192 Sandesh Bhojpur Arrah 291,878
193 Barhara 312,103
194 Arrah 327,553
195 Agiaon SC 263,836
196 Tarari None 304,027
197 Jagdishpur 308,381
198 Shahpur 308,161
199 Brahampur Buxar Buxar 346,158
200 Buxar 288,128
201 Dumraon 324,739
202 Rajpur SC 336,695
203 Ramgarh None Kaimur 286,876
204 Mohania SC Sasaram 277,850
205 Bhabua None 280,564
206 Chainpur 329,045
207 Chenari SC Rohtas 312,311
208 Sasaram None 355,249
209 Kargahar 331,884
210 Dinara Buxar 308,070
211 Nokha Karakat 297,842
212 Dehri 299,804
213 Karakat 333,262
214 Arwal Arwal Jahanabad 268,421
215 Kurtha 259,061
216 Jehanabad Jehanabad 302,681
217 Ghosi 260,927
218 Makhdumpur SC 249,011
219 Goh None Aurangabad Karakat 313,574
220 Obra 319,915
221 Nabinagar 283,912
222 Kutumba SC Aurangabad 272,650
223 Aurangabad None 312,764
224 Rafiganj 333,900
225 Gurua Gaya 285,969
226 Sherghati Gaya 279,534
227 Imamganj SC Aurangabad 304,475
228 Barachatti Gaya 310,945
229 Bodh Gaya 329,813
230 Gaya Town None 280,313
231 Tikari Aurangabad 302,975
232 Belaganj Gaya 279,839
233 Atri Jahanabad 308,538
234 Wazirganj Gaya 315,561
235 Rajauli SC Nawada Nawada 331,278
236 Hisua None 368,488
237 Nawada 364,839
238 Gobindpur 315,221
239 Warsaliganj 345,554
240 Sikandra SC Jamui Jamui 301,506
241 Jamui None 313,053
242 Jhajha 339,867
243 Chakai 319,819

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