List of Chief Ministers of Punjab (India)
Chief Minister of Punjab (1947-1966) (Punjab, Haryana and Himachal)

№
Name (birth–death); constituency
Portrait
Party (coalition with)
Party (coalition with)
Term of office
Term of office
Term of office
Elections (Vidhan Sabha)
Appointed by(Governor)
1
Gopi Chand Bhargava (1889–1966) MLA for University
-
-
Indian National Congress
15 August 1947
13 April 1949
1 year, 241 days
(Interim Assembly)
Chandulal Madhavlal Trivedi
2
Bhim Sen Sachar (1894–1978) MLA for Lahore City
-
-
Indian National Congress
13 April 1949
18 October 1949
188 days
(Interim Assembly)
Chandulal Madhavlal Trivedi
(1)
Gopi Chand Bhargava (1889–1966) MLA for University
18 October 1949
-
Indian National Congress
20 June 1951
1 year, 245 days
-
(Interim Assembly)
Chandulal Madhavlal Trivedi
(i)
Vacant (President's rule)
Vacant (President's rule)
None
None
20 June 1951
17 April 1952
302 days
—
Rajendra Prasad
(2)
Bhim Sen Sachar (1894–1978) MLA for Ludhiana City South
-
-
Indian National Congress
17 April 1952
23 January 1956
3 years, 281 days
1952 (1st)
Chandulal Madhavlal Trivedi
3
Partap Singh Kairon (1901–1965) MLA for Sujanpur
-
-
Indian National Congress
23 January 1956
9 April 1957
8 years, 150 days
1952 (1st)
Chandeshwar Prasad Narayan Singh
3
Partap Singh Kairon (1901–1965) MLA for Sujanpur
-
-
Indian National Congress
9 April 1957
11 March 1962
8 years, 150 days
1957 (2nd)
Chandeshwar Prasad Narayan Singh
3
Partap Singh Kairon (1901–1965) MLA for Sujanpur
-
-
Indian National Congress
11 March 1962
21 June 1964
8 years, 150 days
1962 (3rd)
Narhar Vishnu Gadgil
(1)
Gopi Chand Bhargava (1889–1966) MLC in Vidhan Parishad
21 June 1964
-
Indian National Congress
6 July 1964
15 days
Hafiz Mohamad Ibrahim
1962 (3rd)
-
4
Ram Kishan MLA for Jullundur City North East
7 July 1964
-
Indian National Congress
5 July 1966
1 year, 363 days
Hafiz Mohamad Ibrahim
1962 (3rd)
-
(ii)
Vacant (President's rule)
Vacant (President's rule)
None
None
5 July 1966
1 November 1966
119 days
—
Sarvepalli Radhakrishnan

Question: Who was the first Chief Minister of Punjab, and when were they the Chief Minister?
Answer: Gopi Chand Bhargava (1889 – 1966) was the first Chief Minister of Punjab from 15 August 1947 to 13 April 1949, and again between 18 October 1949, to 20 June 1951, and for the third time between 21 June 1964, and 6 July 1964.