In India the labour revolution started in 1877 when various measures taken by government, social reformers and enlightened employers to improve the workers situations whereas the trade union revolution was started in 1918 when the workers formed their association to improve their conditions. Trade union movement is nothing but a part of labour movement which is a wider term.
Like other countries, development of trade union movement in India is increase with large scale industries.
Development of large industrial units brought about many changes in working and living environment of workers and created a number of complex problems.
Introduction of machinery, new lines of production, concentration of industries in certain big cities gave birth to new class of wage earners and divided the industrial society into capitalist and labourers.
In the absence of any organisation, they were ruthlessly exploited and had to work in poor working conditions. Individual protests could have no effect on employers and therefore, they consolidated and united themselves to protect from the inhuman acts of employers. They join hands and make protest on an organised scale and formed labour unions.
At present the Indian Trade Unions have got a legal status.