South Delhi Lok Sabha constituency is one of the seven Lok Sabha constituencies in the Indian National Capital Territory of Delhi. This constituency came into existence in 1966.

The seat was a stronghold of the Bharatiya Janata Party for many years but in 2009, after delimitation, INC won this seat. Ramesh Bidhuri of the BJP is the MP representing the constituency since 2014.

Following the delimitation of the parliamentary constituencies, since 2008, it comprises the following Delhi Vidhan Sabha segments:

#	Name	District	Member	Party		Leading (in 2024)
36	Bijwasan	South West Delhi	Bhupinder Singh Joon		AAP		BJP
37	Palam		Bhavna Gaur		AAP		BJP
45	Mehrauli	South Delhi	Naresh Yadav		AAP		BJP
46	Chhatarpur		Vacant				BJP
47	Deoli (SC)		Prakash Jarwal		AAP		BJP
48	Ambedkar Nagar (SC)		Ajay Dutt		AAP		AAP
49	Sangam Vihar	South East Delhi	Dinesh Mohaniya		AAP		AAP
51	Kalkaji		Atishi Marlena		AAP		BJP
52	Tughlakabad		Sahiram		AAP		AAP
53	Badarpur		Vacant				BJP

From 1993 to 2008, it comprised the following Delhi Vidhan Sabha segments:

1. Okhla
2. Kalkaji
3. Malviya Nagar (Polling stations 1–60 and 71–128)
4. Hauz Khas
5. R K Puram
6. Delhi Cantt
7. Janakpuri (Polling stations 1–91)
8. Hari Nagar
9. Tilak Nagar
10. Rajouri Garden
11. Sarojini Nagar (Polling stations 94–107)
12. Gole Market (Polling stations 101–109)
13. Kasturba Nagar (Polling stations 22 and 115–119)

From 1966 to 1993, South Delhi Lok Sabha constituency comprised the following Delhi Metropolitan Council segments:

1. Delhi Cantt
2. Okhla
3. Malviya Nagar
4. R K Puram
5. Hauz Khas
6. Ashok Nagar
7. Tilak Nagar
8. Rajouri Garden

The South Delhi Lok Sabha constituency was created in 1967. The list of Member of Parliament (MP) is as follows:

Year	Member	Party
1967	Balraj Madhok		Bharatiya Jana Sangh
1971	Shashi Bhushan		Indian National Congress
1977	Vijay Kumar Malhotra		Janata Party
1980	Charanjit Singh		Indian National Congress (I)
1984	Lalit Maken		Indian National Congress
1985^	Arjun Singh
1989	Madan Lal Khurana		Bharatiya Janata Party
1991
1996	Sushma Swaraj
1998
1999	Vijay Kumar Malhotra
2004
2009	Ramesh Kumar		Indian National Congress
2014	Ramesh Bidhuri		Bharatiya Janata Party
2019
2024	Ramvir Bidhuri

^By-Poll

2024 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Ramvir Singh Bidhuri	692,832	53.46	3.12
	AAP	Sahiram Pehalwan	568,499	43.87	17.52
	NOTA	None of the Above	5,961	0.46
Majority			124,333	9.59
Turnout			1,293,598	56.45	2.30
Registered electors			22,91,764
	BJP hold		Swing

2019 Indian general elections: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Ramesh Bidhuri	687,014	56.58	11.41
	AAP	Raghav Chadha	3,19,971	26.35	9.12
	INC	Vijender Singh	1,64,613	13.56	2.20
	NOTA	None of the Above	5,264	0.43	0.07
Majority			3,67,043	30.23	20.53
Turnout			12,14,545	58.75	4.22
	BJP hold		Swing	11.41

2014 Indian general elections: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Ramesh Bidhuri	497,980	45.17	8.65
	AAP	Col. Devinder Sehrawat	3,90,980	35.47	New
	INC	Ramesh Kumar	1,25,213	11.36	37.91
	IND.	Ruby Yadav	56,749	5.15	N/A
	BSP	Sanjay Kumar Rai	10,873	0.99	11.06
	NOTA	None of the Above	4,010	0.36	N/A
Majority			1,07,000	9.70	3.05
Turnout			11,02,410	62.90	15.49
	BJP gain from INC		Swing	4.10

2009 Indian general elections: South Delhi

Party		Candidate	Votes	%	±%
	INC	Ramesh Kumar	360,278	49.27	2.36
	BJP	Ramesh Bidhuri	2,67,059	36.52	13.73
	BSP	Kanwar Singh Tanwar	88,120	12.05	11.19
	CPI	Shrichand Tanwar	5,244	0.72	N/A
Majority			93,219	12.75	9.41
Turnout			7,31,294	47.41	7.54
	INC gain from BJP		Swing	2.36

2004 Indian general elections: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Prof. Vijay Kumar Malhotra	240,654	50.25	2.00
	INC	R. K. Anand	2,24,649	46.91	0.66
	Independent	Shiv Khera	4,832	1.01	1.01
	BSP	Surjeet Singh Assie	4,100	0.86	0.66
Majority			16,005	3.34	2.66
Turnout			4,78,876	39.87	2.00
	BJP hold		Swing	2.00

1999 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Prof. Vijay Kumar Malhotra	261,230	52.25	5.99
	INC	Dr. Manmohan Singh	2,31,231	46.25	8.50
	Independent	Mohammad Sarif	2,846	0.57	N/A
	BSP	Narendra Nath Shukla	1,021	0.20	1.60
Majority			29,999	6.00	14.49
Turnout			4,99,937	41.87
	BJP hold		Swing	5.99

1998 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Sushma Swaraj	331,756	58.24	3.55
	INC	Ajay Maken	2,15,043	37.75	4.23
	BSP	Nisha Gotam	10,260	1.80	N/A
	Independent	Jagjit Singh	1,185	0.21	N/A
Majority			1,16,713	20.49	0.68
Turnout			5,69,597
	BJP hold		Swing	3.55

1996 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Sushma Swaraj	294,570	54.69	15.20
	INC	Kapil Sibal	1,80,564	33.52	3.63
	AIIC(T)	Manoj Prabhakar	17,690	3.28	New
Majority			1,14,006	21.17	11.96
Turnout			5,38,551
	BJP hold		Swing	15.20

1991 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Madan Lal Khurana	208,728	39.49	21.17
	INC	Romesh Bhandari	1,58,005	29.89	8.25
Majority			48,723	9.21	13.30
Turnout			5,28,550
	BJP hold		Swing	21.17

1989 Indian general election: South Delhi

Party		Candidate	Votes	%	±%
	BJP	Madan Lal Khurana	382,904	60.66
	INC	Subhash Chopra	77,910	22.14
Majority			2,04,994	38.51
Turnout			4,66,370
	BJP gain from INC		Swing

• Lalit Maken (Cong) : 215,898 votes
• Vijay Kumar Malhotra (BJP) : 130,847

• Arjun Singh (Cong) : 161,744 votes
• V.K. Malhotra (BJP) : 121,830

• Charanjit Singh (Cong - I) : 150,513 votes
• Vijay Kumar Malhotra (Janata Party) : 146,413
• Shashi Bhushan (Cong - Urs) : 6339
• Balraj Madhok (Ind) : 2196 votes

• Balraj Madhok (BJS) : 105,611 votes
• R. Singh (INC) : 69290

• List of constituencies of the Lok Sabha
• Outer Delhi (Lok Sabha constituency)

28°30′14″N 77°12′50″E / 28.5040°N 77.2140°E / 28.5040; 77.2140