BHNJD: 122
INC: 71
BJP: 39
IND: 30
CPI: 23
JMM: 19
IPF: 7
CPM: 6
JNP: 3
MCOR: 2
SOP(L): 1
AJKD: 1
Highest Margin
109,423
Lowest Margin
62
Bihar 1990 Assembly Election Constituency-wise Results (324)
| Constituency | Winner | Party | Margin | Details |
|---|---|---|---|---|
| Singheshwar (SC) | RAJESH RANJAN |  IND | 21378 | View → |
| SINGHIA | ASHOK KUMAR |  INC | 25279 | View → |
| SISAI | LALIT ORAON |  BJP | 10801 | View → |
| Sitamarhi | SHAHID ALI KHAN |  BHNJD | 6086 | View → |
| Siwan | AVADH BIHARI CHAUDHARY | BHNJD | 17855 | View → |
| SONABARSA | ASHOK KUMAR SINGH | BHNJD | - | View → |
| SONABARSA | RAM JIWAN PRASAD | BHNJD | 62 | View → |
| Sonepur | RAJ KUMAR ROY | BHNJD | 3644 | View → |
| Sugauli | RAMASHRAY SINGH |  CPM | 2411 | View → |
| Sultanganj | FANINDRA CHOUDHARY | BHNJD | 9246 | View → |
| Supaul | VIJENDRA PD. YADAV | BHNJD | 4256 | View → |
| SURAJGARHA | SATISH KUMAR |  CPI | 8348 | View → |
| Sursand | RAVINDRA PRASAD SAHI | INC | 2202 | View → |
| TAMAR | T. MUCHI RAI MUNDA | INC | 2622 | View → |
| Taraiya | RAJEO PRATAP SINGH | BHNJD | 8753 | View → |