Siddipet Lok Sabha constituency was one of the 42 Lok Sabha (parliamentary) constituencies in Andhra Pradesh till 2008.
| Lok Sabha | Duration | Name of M.P. | Party Affiliation | ||
|---|---|---|---|---|---|
| Fourth | 1967-71 | G. Venkatswamy | Indian National Congress | ||
| Fifth | 1971-77 | G. Venkatswamy | Telengana Praja Samithi | ||
| Sixth | 1977-80 | Nandi Yellaiah | Indian National Congress | ||
| Seventh | 1980-84 | Nandi Yellaiah | Indian National Congress | ||
| Eighth | 1984-89 | G. Vijaya Rama Rao | Telugu Desam Party | ||
| Ninth | 1989-91 | Nandi Yellaiah | Indian National Congress | ||
| Tenth | 1991-96 | Nandi Yellaiah | Indian National Congress | ||
| Eleventh | 1996-98 | Nandi Yellaiah | Indian National Congress | ||
| Twelfth | 1998-99 | Malyala Rajaiah | Telugu Desam Party | ||
| Thirteenth | 1999-04 | Malyala Rajaiah | Telugu Desam Party | ||
| Fourteenth | 2004-09 | Sarvey Sathyanarayana | Indian National Congress | ||
| General Election, 2004: Siddipet | |||||
| Party | Candidate | Votes | % | ±% | |
| Congress | Sarvey Sathyanarayana | 593,879 | 53.03 | +11.82 | |
| TDP | Dr K Lingaiah | 454,907 | 40.62 | -15.33 | |
| BSP | Paladugu Gouramma | 31,949 | 2.85 | ||
| Independent | B O V Rao | 25,069 | 2.24 | ||
| Independent | Y Samaiah | 14,010 | 1.25 | +1.08 | |
| Majority | 138,978 | 12.41 | +27.15 | ||
| Turnout | 1,119,814 | 64.84 | -1.46 | ||
| Congress hold | Swing | +11.82 | |||
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