TheIndian Open was a men'stennis tournament founded as theIndia International Championships^[1] in 1923. It was played from 1923 until 1979 and the men's event was part of theGrand Prix tennis circuit, 1973 to 1979. From 1947 to 1972 it was known as theIndian National Championships (though open to international competitors). It was held in various cities across India and was played outdoor on multiple surfaces.

Tennis was introduced to India in 1880s by British Army and Civilian Officers.^[2] In 1923 the India International Championships^[3] were established and played at theCalcutta South Club,Calcutta,West Bengal,India.

In 1973, the Indian championships with international competitors diverged from the national championships. By the late 1970s the national championships was a minor event for indian born players. The international event was renamed as the Indian Open in 1973.

TheCalcutta South Club was founded in 1920, and also organised the Calcutta Lawn Tennis Championships.That tournament later became known as the East India Lawn Tennis Championships. Its current facilities consist of the six originalgrass courts, In 1985 the Club built six newclay courts, and in 2004 it added five asphalt-based rubberizedhard courts.

After the war until the start of the open era, theIndia International Championships were predominantly staged inCalcutta, under the tournament name theIndian National Championships. The event was often held over Christmas and new year and on a few occasions two events were held in a single year in January and December (sometimes winners are described as winning in a year in which an event started in late December, other times in the year the event finished in early January). In a few years, the event was also held in other cities such asNew Delhi andAllahabad.

Year	Location	Winner	Runner-up	Score
India International Championships
1923[4]	Calcutta	Sunao Okamoto
1924[5]	Calcutta	Sunao Okamoto(2)
1925[6]	Calcutta	Syed Anwar Yusoof
1926[7]	Calcutta	J. Robson
1927[8]	Calcutta	Sunao Okamoto(3)	Pershotam Lal Mehta	5–7, 6–4, 6–4
1928[9]	Calcutta	Atri-Madan Mohan	Pershotam Lal Mehta	3–6, 6–3, 6–1, 8–6
1929[10]	Calcutta	Edward Vivian Bobb	Mohammed Sleem	3–6, 3–6, 6–3, 6–4, 6–4
1930[11]	Calcutta	Bunny Austin	Eskell 'Buster' Andrews	6–2, 7–5, 6–1
1931[12]	Calcutta	Jiro Fujikura	Ryuki Miki	3–6, 3–6, 6–1, 7–5, 6–0
1932[13]	Calcutta	Giorgio de Stefani	Dip Narain Kapoor	7–5, 6–4, 6–2
1933[14]	Calcutta	Atri-Madan Mohan(2)	Edward Vivian Bobb	10–8, 6–3, 6–3
1934[15]	Calcutta	Josip Palada	Franjo Punčec	9–7, 6–4, 6–3
All India Championships
1935[16]	Allahabad	Josip Palada(2)	Franjo Punčec	4–6, 7–5, 6–3, 6–2
1936[17]	Calcutta	Ladislav Hecht	Roderich Menzel	2–6, 3–6, 6–4, 6–1, 5–5 ret.
1937[18]	Allahabad	Edward Vivian Bobb(2)	Dip Narain Kapoor	6–4, 7–5, 6–3
1938[19]	Allahabad	Dip Narain Kapoor	Islam Ahmad	8–6, 6–4, 6–4
1939[20]	Bombay	Ghaus Mohammad	Tenkasi K. Ramanathan	6–1, 6–2
1940[21]	Calcutta	Franjo Punčec	Yudishtra Singh	11-9. 6–4, 7–5
1941[22]	Baroda	Ghaus Mohammad(2)	Iftikhar Ahmed Khan	6–0, 6–3, 7–5
1942[23]	Lahore	Subba L.R. Sawhney	Prem Lal Pandhi	6–1, 6–1, 6–0
1943[24]	Indore	Ghaus Mohammad(3)	Iftikhar Ahmed Khan	6–2, 7–5, 4–6, 6–3
1944[25]	Allahabad	Hal Surface	Ghaus Mohammad	6–2, 6–4, 6–0
1945[26]	Madras	Sumant Misra	B.R. Kapinipathy	9–7, 9–7, 5–7, 6–0
1946[27]	Calcutta	Ghaus Mohammad(4)	Dilip Bose	7–5, 3–6, 6–3, 6–3
India National Championships
1947[28]	Calcutta	Sumant Misra(2)	Man-Mohan Bhandari	4–6, 6–3, 6–2, 6–0
1948[29]	Calcutta	Lennart Bergelin	Sumant Misra	8–6, 6–1, 6–4
1949[30]	Calcutta	Dilip Bose	Sumant Misra	3–6, 6–3, 6–3, 8–6
1950[31]	Allahabad	Felicisimo Ampon	Pedro Masip	5–7, 8–6, 8–6, 6–1
1951[32]	Calcutta	Sven Davidson	Jaroslav Drobný	6–3, 6–3 7–5
1952[33]	Calcutta	Sven Davidson(2)	Khan-Iftikhar Ahmed	6–3, 6–4, 8–6
1953[34]	Calcutta	Sumant Misra(3)	Naresh Kumar	6–8, 2–6, 6–3, 9–7, 6–3
1954[35]	Calcutta	Ramanathan Krishnan	Jack Arkinstall	6–2, 6–3, 7–5
1955[36]	Calcutta	Jack Arkinstall	Ramanathan Krishnan	3–6, 6–3, 3–6, 6–2, 6–3
1956[37]	New Delhi	Sven Davidson(3)	Kurt Nielsen	6–4, 6–1, 15–17, 6–4
1957[38]	Calcutta	Ramanathan Krishnan(2)	Naresh Kumar	6–4, 6–0, 8–6
1958[39]	Calcutta	Ulf Schmidt	Ramanathan Krishnan	6–2, 6–2, 4–6, 4–6, 6–3
1959[40]	Calcutta	Ramanathan Krishnan(3)	Naresh Kumar	6–2, 6–2, 6–1
1960[41]	New Delhi	Ramanathan Krishnan(4)	Ulf Schmidt	6–3, 6–3 6–1
1961[42]	Calcutta	Ramanathan Krishnan(5)	Carlos Fernandes	6–2, 6–2, 3–6, 7–5
India National and Northern India Championships
1962[43]	New Delhi	Roy Emerson	Ramanathan Krishnan	6–4, 6–4, 6–3
1963[44]	New Delhi	Ramanathan Krishnan(6)	Jaidip Mukerjea	6–4, 6–0, 6–3
1964[45]	New Delhi	Ramanathan Krishnan(7)	Alan Mills	6–1, 6–3, 6–4
1965[46]	New Delhi	Ramanathan Krishnan(8)	Martin Mulligan	w.o.
1966[47]	New Delhi	Jaidip Mukerjea	Premjit Lall	4–6, 6–3, 6–4, 6–0
1967[48]	New Delhi	Premjit Lall[49]	Ramanathan Krishnan	3–6, 7–5, 5–7, 2–1 rtd.
India International Championships
1968	Calcutta	Ion Țiriac	Jaidip Mukerjea	6–4, 4–6, 6–2, 5–7, 6–4
↓  Open era  ↓
India National Championships
1969[50]	New Delhi	Ilie Năstase	Premjit Lall	6–4, 6–2, 4–6, 6–4
1970[51]	Calcutta	Premjit Lall(2)	Alex Metreveli	9–7, 6–0, 5–7 6–3
1971[34]	Calcutta	Jaidip Mukerjea(2)	Premjit Lall	7-5, 6-3, 6-3
1972[34]	Calcutta	Gaurav Misra	Ramanathan Krishnan	4–6, 6–4, 8–10, 7–5, 6–2
Indian Open
1973[52]	New Delhi	Vijay Amritraj	Mal Anderson	6–4, 5–7, 7–9, 6–3, 11-9
1974[53]	Bombay	Onny Parun	Tony Roche	6–3, 6–3, 7–6
1975[54]	Calcutta	Vijay Amritraj(2)	Manuel Orantes	7–5, 6–3
1976[55]	Bangalore	Kim Warwick	Sashi Menon	6–1, 6–2
1977[56]	Bombay	Vijay Amritraj(3)	Terry Moor	7–6, 6–4
1978[57]	Calcutta	Yannick Noah	Pascal Portes	6–3, 6–2
1979[58]	Bombay	Vijay Amritraj(4)	Peter Elter	6–1, 7–5

Year	Champions	Runners-up	Score
1973	Jim McManus Raúl Ramírez	Anand Amritraj Vijay Amritraj	6–2, 6–4
1974	Anand Amritraj Vijay Amritraj	Dick Crealy Onny Parun	6–4, 7–6
1975	Juan Gisbert Manuel Orantes	Anand Amritraj Vijay Amritraj	1–6, 6–4, 6–3
1976	Bob Carmichael Ray Ruffels	Chiradip Mukerjea Bhanu Nunna	6–2, 7–6
1977	Mike Cahill Terry Moor	Marcello Lara Jasjit Singh	6–7, 6–4, 6–4
1978	Sashi Menon Sherwood Stewart	Gilles Moretton Yannick Noah	7–6, 6–4
1979	Chris Delaney James Delaney	Thomas Fürst Wolfgang Popp	7–6, 6–2

• All India Hard Court Championships
• National Lawn Tennis Championships of India
• Category:National and multi-national tennis tournaments

• Majumdar, Boria; Mangan, J. A. (2013).Sport in South Asian Society: Past and Present. Routledge.ISBN 9781317998945.
• http://www.tennisarchives.com/All India Championships 1910–1956

• ATP World Tour archive
• ITF – Indian Open.Archived 12 February 2010 at theWayback Machine.

• Grand Prix tennis circuit
• Clay court tennis tournaments
• Grass court tennis tournaments
• Hard court tennis tournaments
• Tennis tournaments in India
• Defunct tennis tournaments in India
• Defunct sports competitions in India
• Recurring sporting events established in 1923
• Recurring sporting events disestablished in 1979
• 1923 establishments in India
• 1979 disestablishments in India
• National and multi-national tennis tournaments

• Use dmy dates from August 2022
• Use Indian English from August 2022
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