the same year, and stopped work, peaked in 1979, at 2.9 million workers. The number of lost man-days from labour relation issues peaked in 1982 at 74.6 million lost man-days, or about 2.7% of total man-days in organised sector. While the 1970s experienced a spike in labour unions and disputes, a sudden reduction in labour disputes was observed during 1975–1977, when Indira Gandhi, then prime minister, declared an emergency and amongst other things suspended many civil rights including the worker's right to strike. This is a table showing trend of organised Labour Force. Labour relations during 1990-2000 Union membership is concentrated in the organised sector, and in the early 1990s total membership was about 9 million. Many unions are affiliated with regional or national federations, the most important of which are the Indian National Trade Union Congress, the All India Trade Union Congress, the Centre of Indian Trade Unions, the Hind Mazdoor Sabha, and the Bharatiya Mazdoor Sangh. Politicians have often been union leaders, and some analysts believe that strikes and other labour protests are called primarily to further the interests of political parties rather than to promote the interests of the work force. The government recorded 1,825 strikes and lockouts in 1990. As a result, 24.1 million workdays were lost, 10.6 million to strikes and 13.5 million to lockouts. More than 1.3 million workers were involved in these labour disputes. The number and seriousness of strikes and lockouts have varied from year to year. However, the figures for 1990 and preliminary data from 1991 indicate declines from levels reached in the 1980s, when between 33 and 75 million workdays per year were lost because of labour disputes. In 1999, the government of India recorded about 927 strikes and lockouts, or about half of those for 1990. The number of lost man-days were about the same for 1999 and 1991, even though Indian economic output and number of workers had grown significantly over the 1990s. Labour relations during 2000–2011 Between 2004 and 2011, India has experienced a decline in unionised labour. The number of labour disputes has dropped to 400 annually over the same period, compared with over 1,000 in the 1990s. The annual number of man-days lost to labour disputes in early 1990s averaged around 27 million; by 2010, while Indian economy has grown significantly and Indian labour force has expanded, the average number of man-days lost has dropped