Plague period Recession period 1863-1867 3 years 1869- 1873 4 years 1876-1881 9 years 1889-1898 3 years 1900-1907 6 years 1912-1920 7 years 1926-1931 10 years 1940-1946 4 years 1949-1955 5 years 1959-1962 Recession continuing

Table 1: The duration of plagues in India during the last 100 years.