# Bordumsa-Diyun Assembly constituency

Bordumsa–Diyun is one of the 60 constituencies of Legislative Assembly of Arunachal Pradesh and also the only unreserved constituency in the State's Vidhan Sabha. The current MLA of this constituency is Nikh Kamin. Bordumsa–Diyun is one of the relatively new constituencies in Arunachal Pradesh, covering Diyun and Bordumsa administrative circles.The area is unique in its diversity, including indigenous Chakma, Singpho and Tangsa communities, along with a significant population of migrants from other parts of India.

## History

Bordumsa–Diyun was a part of the Naodihing–Nampong constituency from 1975 until 1987. After 1987, due to political and demographic changes, it gained more localized representation through restructuring, ultimately leading to its establishment as a separate constituency. This allowed it to address its unique needs and better represent the diverse communities in Diyun and Bordumsa.
Bordumsa and Diyun are towns in the Indian state of Arunachal Pradesh. Changlang is the name of the district that contains Bordumsa and Diyun towns. Bordumsa and Diyun are revenue circles and together constitute form the constituency.

## Members of the Legislative Assembly

| Vidhan Sabha | Election | Name | Party | Tenure |
| 4th | 1990 | C. C. Singpho | Indian National Congress | 1990–2014 |
| 5th | 1995 | C. C. Singpho | Indian National Congress | 1990–2014 |
| 6th | 1999 | C. C. Singpho | Indian National Congress | 1990–2014 |
| 7th | 2004 | C. C. Singpho | Indian National Congress | 1990–2014 |
| 8th | 2009 | C. C. Singpho | Indian National Congress | 1990–2014 |
| 9th | 2014 | Nikh Kamin | People's Party of Arunachal | 2014–2019 |
| 10th | 2019 | Somlung Mossang | Independent politician | 2019–2024 |
| 11th | 2024 | Nikh Kamin | Nationalist Congress Party | 2024–Incumbent |

## Election results

Vote share winning candidates :
| 2024 | 2024 | 51.04% | 51.04% |
| 2019 | 2019 | 39.01% | 39.01% |
| 2014 | 2014 | 41.58% | 41.58% |
| 2009 | 2009 | 48.84% | 48.84% |
| 2004 | 2004 | 40.63% | 40.63% |
| 1999 | 1999 | 33.64% | 33.64% |
| 1995 | 1995 | 51.03% | 51.03% |
| 1990 | 1990 | 43.68% | 43.68% |

### Assembly Election 2024

The 11th Assembly Election of Arunachal Pradesh was conducted on 19 April 2024 and the result was declared on 2 June 2024 in which Nikh Kamin of Nationalist Congress Party came out as the front runner and will be representing 49th Bordumsa-Diyun Constituency at the state Assembly.
2024 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | NCP | Nikh Kamin | 10,497 | 51.04% | New |
| | BJP | Somlung Mossang | 9,145 | 44.46% | 20.12 |
| | PPA | Biri Joy | 364 | 1.77% | 0.69 |
| | Independent | Upen Chandra Deori | 222 | 1.08% | New |
| | NOTA | None of the Above | 200 | 0.97% | 0.02 |
| | Arunachal Democratic Party | Madan Tanti | 139 | 0.68% | New |
| Margin of victory | Margin of victory | Margin of victory | 1,352 | 6.57% | 8.09 |
| Turnout | Turnout | Turnout | 20,567 | 89.64% | 1.97 |
| Registered electors | Registered electors | Registered electors | 22,943 | | 23.96 |
| | NCP gain from Independent | NCP gain from Independent | Swing | 12.03 | |

### Assembly Election 2019

2019 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | Independent | Somlung Mossang | 6,330 | 39.01% | New |
| | BJP | Jawra Maio | 3,951 | 24.35% | 16.77 |
| | NPP | Nikh Kamin | 3,783 | 23.31% | New |
| | JD(U) | Dana Takio | 931 | 5.74% | New |
| | INC | Joseph Kishan | 328 | 2.02% | 29.16 |
| | All Indians Party | Upen Chandra Deori | 232 | 1.43% | New |
| | PPA | Sijen Thakkho | 175 | 1.08% | 40.50 |
| | NOTA | None of the Above | 161 | 0.99% | New |
| | JD(S) | Pike Pulu | 123 | 0.76% | New |
| | Independent | Bidya Sankar Prasad | 112 | 0.69% | New |
| | Independent | Yari Tok | 102 | 0.63% | New |
| Margin of victory | Margin of victory | Margin of victory | 2,379 | 14.66% | 4.26 |
| Turnout | Turnout | Turnout | 16,228 | 87.68% | 3.52 |
| Registered electors | Registered electors | Registered electors | 18,509 | | 21.99 |
| | Independent gain from PPA | Independent gain from PPA | Swing | 2.57 | |

### Assembly Election 2014

2014 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | PPA | Nikh Kamin | 5,309 | 41.58% | New |
| | INC | C. C. Singpho | 3,981 | 31.18% | 17.66 |
| | NCP | Mayong Maio | 2,363 | 18.51% | 22.80 |
| | BJP | Siraiong Singpho | 967 | 7.57% | 2.28 |
| | NOTA | None of the Above | 148 | 1.16% | New |
| Margin of victory | Margin of victory | Margin of victory | 1,328 | 10.40% | 2.87 |
| Turnout | Turnout | Turnout | 12,768 | 84.16% | 2.88 |
| Registered electors | Registered electors | Registered electors | 15,172 | | 2.76 |
| | PPA gain from INC | PPA gain from INC | Swing | 7.26 | |

### Assembly Election 2009

2009 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | C. C. Singpho | 6,193 | 48.84% | 8.21 |
| | NCP | Khumral Lungphi | 5,238 | 41.31% | 38.36 |
| | BJP | Siraiong Singpho | 1,250 | 9.86% | New |
| Margin of victory | Margin of victory | Margin of victory | 955 | 7.53% | 1.74 |
| Turnout | Turnout | Turnout | 12,681 | 81.27% | 6.89 |
| Registered electors | Registered electors | Registered electors | 15,603 | | 23.58 |
| | INC hold | INC hold | Swing | | |

### Assembly Election 2004

2004 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | C. C. Singpho | 3,816 | 40.63% | 6.99 |
| | Independent | Mayong Maio | 3,272 | 34.84% | New |
| | Independent | Lajala Singpho | 2,027 | 21.58% | New |
| | NCP | Umbontang Singpho | 277 | 2.95% | New |
| Margin of victory | Margin of victory | Margin of victory | 544 | 5.79% | 0.05 |
| Turnout | Turnout | Turnout | 9,392 | 73.36% | 2.26 |
| Registered electors | Registered electors | Registered electors | 12,626 | | 25.02 |
| | INC hold | INC hold | Swing | 6.99 | |

### Assembly Election 1999

1999 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | C. C. Singpho | 2,604 | 33.64% | 17.39 |
| | Independent | Khumral Lungphi | 2,152 | 27.80% | New |
| | BJP | Siongam Singpho | 1,549 | 20.01% | New |
| | Independent | Singdu Nong Singpho | 1,325 | 17.12% | New |
| | AC | Chowseng Mong Singpho | 110 | 1.42% | New |
| Margin of victory | Margin of victory | Margin of victory | 452 | 5.84% | 11.13 |
| Turnout | Turnout | Turnout | 7,740 | 79.92% | 8.73 |
| Registered electors | Registered electors | Registered electors | 10,099 | | 15.44 |
| | INC hold | INC hold | Swing | 17.39 | |

### Assembly Election 1995

1995 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | C. C. Singpho | 3,811 | 51.03% | 7.35 |
| | Independent | Singdu Nong Singpho | 2,544 | 34.07% | New |
| | Independent | Innaola Ong Singpho | 823 | 11.02% | New |
| | Independent | Sikhet Nong | 290 | 3.88% | New |
| Margin of victory | Margin of victory | Margin of victory | 1,267 | 16.97% | 1.92 |
| Turnout | Turnout | Turnout | 7,468 | 87.62% | 10.73 |
| Registered electors | Registered electors | Registered electors | 8,748 | | 14.08 |
| | INC hold | INC hold | Swing | 7.35 | |

### Assembly Election 1990

1990 Arunachal Pradesh Legislative Assembly election: Bordumsa-Diyun :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | C. C. Singpho | 2,500 | 43.68% | New |
| | JD | Innem Gam Singpho | 1,639 | 28.64% | New |
| | Independent | Sinai Wangno | 1,584 | 27.68% | New |
| Margin of victory | Margin of victory | Margin of victory | 861 | 15.04% | |
| Turnout | Turnout | Turnout | 5,723 | 77.39% | |
| Registered electors | Registered electors | Registered electors | 7,668 | | |
| | INC win (new seat) | INC win (new seat) | INC win (new seat) | INC win (new seat) | INC win (new seat) |