The results of the bye-eletion to the Lok Sabha seat in Ernakulam -
declared on 30-Sep-2003
| Candidate |
Party |
Total Votes: 1088148 Polled : 730725 |
| Dr.Sebastian Paul | Independent (LDF support) | 335308 |
| M.O.John | UDF | 313176 |
| V.Viswanatha Menon | Independent (BJP, CPM Rebel support) | 51420 |
| Poonthura Siraj | PDP | 17426 |
| Francis Kulathunkal | Independent | 8856 |
| M.K.Suresh | Indepedent | 2324 |
| Dr.K.Padmarajan | Independent | 2215 |
Assembly Constituencies and voting pattern
| Paravoor | Njaarackal | Ernakulam | Mattancheri | Palluruthi | Thripunithura | Aluva | Postal | |
| Total Votes | 130546 | 136592 | 152959 | 96237 | 181118 | 201879 | 188457 | 1216 |
| Polled | 92524 | 93189 | 96610 | 57283 | 122368 | 135703 | 131832 | |
| Dr.Sebastian Paul | 44341 | 46072 | 39414 | 27913 | 53282 | 62846 | 60748 | 692 |
| M.O.John | 36499 | 39466 | 46688 | 22938 | 56297 | 57413 | 53390 | 485 |
| V.Viswanatha Menon | 6635 | 5379 | 7547 | 3751 | 7334 | 10179 | 10559 | 36 |
| Poonthura Siraj | 2918 | 654 | 1564 | 1818 | 2720 | 2960 | 4790 | |
| Francis Kulathinkal | 1420 | 1066 | 588 | 588 | 1910 | 1459 | 1502 | |
| M.K.Suresh | 394 | 269 | 154 | 154 | 394 | 417 | 437 | |
| Dr.K.Padmanarajan | 317 | 283 | 121 | 121 | 431 | 429 | 406 |
