# Thonoknyu Assembly constituency

Thonoknyu is one of the 60 Legislative Assembly constituencies of Nagaland state in India.
It is part of Tuensang district and is reserved for candidates belonging to the Scheduled Tribes.

## Members of the Legislative Assembly

| Year | Member | Party |
| 1974 | Mongchua Khiamungan | United Democratic Alliance |
| 1977 | Pongom | Indian National Congress |
| 1982 | P. Pongon | Naga National Democratic Party |
| 1987 | P. Pongom | Naga National Democratic Party |
| 1989 | Khongo | Naga People's Front |
| 1993 | T. Khongo | Naga People's Front |
| 1998 | Shingnyu | Indian National Congress |
| 2003 | S. Heno Khiamniungan | Nationalist Democratic Movement |
| 2008 | S. Heno Khiamniungan | Naga People's Front |
| 2013 | L. Khumo Khiamniungan | Nationalist Congress Party |
| 2018 | L. Khumo Khiamniungan | National People's Party |
| 2023 | Benei M. Lamthiu | National People's Party |

## Election results
### 2023 Assembly election

2023 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NPP | Benei M. Lamthiu | 10,467 | 56.06% | 4.18% |
| | NDPP | S. Heno Khiamniungan | 8,139 | 43.59% | 25.50% |
| | LJP(RV) | L. Khumo Khiamniungan | 47 | 0.25% | |
| | NOTA | Nota | 17 | 0.09% | |
| Margin of victory | Margin of victory | Margin of victory | 2,328 | 12.47% | −12.54% |
| Turnout | Turnout | Turnout | 18,670 | 89.63% | 2.16% |
| Registered electors | Registered electors | Registered electors | 20,830 | | 12.69% |
| | NPP hold | NPP hold | Swing | 4.18% | |

### 2018 Assembly election

2018 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NPP | L. Khumo Khiamniungan | 8,389 | 51.89% | |
| | NPF | S. Heno Khiamniungan | 4,345 | 26.87% | −10.42% |
| | NDPP | Y. P. Chillio | 2,925 | 18.09% | |
| | INC | Pakhiu Khiamniungan | 392 | 2.42% | −2.07% |
| | NOTA | None of the Above | 117 | 0.72% | |
| Margin of victory | Margin of victory | Margin of victory | 4,044 | 25.01% | 17.69% |
| Turnout | Turnout | Turnout | 16,168 | 87.47% | −10.00% |
| Registered electors | Registered electors | Registered electors | 18,484 | | 0.95% |
| | NPP gain from NCP | NPP gain from NCP | Swing | 7.27% | |

### 2013 Assembly election

2013 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NCP | L. Khumo Khiamniungan | 7,963 | 44.62% | |
| | NPF | S. Heno Khiamniungan | 6,656 | 37.29% | 2.67% |
| | Independent | Y. P. Chillio | 2,412 | 13.51% | |
| | INC | Pakhiu Khiamniungan | 803 | 4.50% | 0.38% |
| Margin of victory | Margin of victory | Margin of victory | 1,307 | 7.32% | −6.08% |
| Turnout | Turnout | Turnout | 17,847 | 97.47% | 6.47% |
| Registered electors | Registered electors | Registered electors | 18,310 | | 3.02% |
| | NCP gain from NPF | NCP gain from NPF | Swing | 9.99% | |

### 2008 Assembly election

2008 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NPF | S. Heno Khiamniungan | 5,600 | 34.62% | 26.29% |
| | Independent | Pongom | 3,432 | 21.22% | |
| | Independent | P. K. F. Tochu | 2,791 | 17.26% | |
| | RJD | Khongo | 1,609 | 9.95% | |
| | JD(S) | Dr. N. L. Aimong | 1,535 | 9.49% | |
| | INC | Khonou | 666 | 4.12% | −14.38% |
| Margin of victory | Margin of victory | Margin of victory | 2,168 | 13.40% | −4.16% |
| Turnout | Turnout | Turnout | 16,174 | 91.12% | −7.24% |
| Registered electors | Registered electors | Registered electors | 17,774 | | 44.05% |
| | NPF gain from NDM | NPF gain from NDM | Swing | -1.44% | |

### 2003 Assembly election

2003 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NDM | S. Heno Khiamniungan | 4,371 | 36.06% | |
| | INC | N. L. Aimong | 2,242 | 18.50% | −11.68% |
| | Independent | S. Shingnyu | 1,717 | 14.17% | |
| | JD(U) | P. Pongom | 1,663 | 13.72% | |
| | BJP | T. Khaikho | 1,117 | 9.22% | |
| | NPF | Shillem | 1,010 | 8.33% | |
| Margin of victory | Margin of victory | Margin of victory | 2,129 | 17.57% | 11.86% |
| Turnout | Turnout | Turnout | 12,120 | 98.24% | 4.41% |
| Registered electors | Registered electors | Registered electors | 12,339 | | 14.81% |
| | NDM gain from INC | NDM gain from INC | Swing | 3.32% | |

### 1998 Assembly election

1998 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | Shingnyu | 3,022 | 30.18% | 0.71% |
| | Independent | N. L. Aimong | 2,451 | 24.48% | |
| | Independent | S. Heno Khiamniungan | 2,422 | 24.19% | |
| | Independent | P. Pongom (Khiam) | 2,119 | 21.16% | |
| Margin of victory | Margin of victory | Margin of victory | 571 | 5.70% | 3.03% |
| Turnout | Turnout | Turnout | 10,014 | 93.83% | −4.34% |
| Registered electors | Registered electors | Registered electors | 10,747 | | 7.52% |
| | INC gain from NPF | INC gain from NPF | Swing | -2.56% | |

### 1993 Assembly election

1993 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NPF | T. Khongo | 3,206 | 32.74% | −13.55% |
| | Independent | Khisangmong | 2,944 | 30.07% | |
| | INC | S. Heno Khiamniungan | 2,885 | 29.46% | −12.44% |
| | Independent | S. Shingnyo | 757 | 7.73% | |
| Margin of victory | Margin of victory | Margin of victory | 262 | 2.68% | −1.71% |
| Turnout | Turnout | Turnout | 9,792 | 98.17% | 0.47% |
| Registered electors | Registered electors | Registered electors | 9,995 | | 43.63% |
| | NPF hold | NPF hold | Swing | -13.55% | |

### 1989 Assembly election

1989 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NPF | Khongo | 3,123 | 46.29% | |
| | INC | P. Pongom | 2,827 | 41.90% | 18.37% |
| | Independent | Shingnyu | 797 | 11.81% | |
| Margin of victory | Margin of victory | Margin of victory | 296 | 4.39% | 0.52% |
| Turnout | Turnout | Turnout | 6,747 | 97.70% | 2.25% |
| Registered electors | Registered electors | Registered electors | 6,959 | | 0.51% |
| | NPF gain from NND | NPF gain from NND | Swing | 18.90% | |

### 1987 Assembly election

1987 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NND | P. Pongom | 1,793 | 27.39% | −1.47% |
| | INC | S. Heno Khiamniungan | 1,540 | 23.53% | 5.23% |
| | NPP | Mongchua Khiamungan | 1,323 | 20.21% | |
| | Independent | P. K. F. Tochu | 1,270 | 19.40% | |
| | Independent | T. Longso Khimn | 620 | 9.47% | |
| Margin of victory | Margin of victory | Margin of victory | 253 | 3.86% | −3.16% |
| Turnout | Turnout | Turnout | 6,546 | 95.45% | 19.25% |
| Registered electors | Registered electors | Registered electors | 6,924 | | −33.99% |
| | NND hold | NND hold | Swing | -1.47% | |

### 1982 Assembly election

1982 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | NND | P. Pongon | 2,280 | 28.86% | |
| | Independent | Khuno Khiamniongan | 1,725 | 21.84% | |
| | Independent | K. Yanchi Tikhir | 1,715 | 21.71% | |
| | INC | Pottu | 1,445 | 18.29% | −13.28% |
| | Independent | S. Heno Khiamniungan | 734 | 9.29% | |
| Margin of victory | Margin of victory | Margin of victory | 555 | 7.03% | −4.09% |
| Turnout | Turnout | Turnout | 7,899 | 76.20% | −13.75% |
| Registered electors | Registered electors | Registered electors | 10,489 | | 47.98% |
| | NND gain from INC | NND gain from INC | Swing | -2.71% | |

### 1977 Assembly election

1977 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | INC | Pongom | 1,982 | 31.58% | |
| | Independent | Pottu | 1,284 | 20.46% | |
| | NCN | K. Yanchi Tikhir | 1,266 | 20.17% | |
| | UDA | Kheno | 1,223 | 19.48% | −16.28% |
| | Independent | Mongchua Khiamungan | 522 | 8.32% | |
| Margin of victory | Margin of victory | Margin of victory | 698 | 11.12% | −3.60% |
| Turnout | Turnout | Turnout | 6,277 | 89.95% | 12.81% |
| Registered electors | Registered electors | Registered electors | 7,088 | | 13.61% |
| | INC gain from UDA | INC gain from UDA | Swing | -4.19% | |

### 1974 Assembly election

1974 Nagaland Legislative Assembly election: Thonoknyu :
| Party | Party | Candidate | Votes | % | ±% |
| | UDA | Mongchua Khiamungan | 1,664 | 35.76% | |
| | NNO | M. T. Mongba | 979 | 21.04% | |
| | Independent | Yanchumong Ticker | 819 | 17.60% | |
| | Independent | Chuba | 717 | 15.41% | |
| | Independent | R. Thongthong | 474 | 10.19% | |
| Margin of victory | Margin of victory | Margin of victory | 685 | 14.72% | |
| Turnout | Turnout | Turnout | 4,653 | 77.14% | |
| Registered electors | Registered electors | Registered electors | 6,239 | | |
| | UDA win (new seat) | UDA win (new seat) | UDA win (new seat) | UDA win (new seat) | UDA win (new seat) |