When one and a half million Indian railway workers went on strike for 20 days in 1974 it brought the country to a halt. Essential food, goods and workers were unable to reach their destinations. Despite this, the general public were largely sympathetic to the strike as they too felt a sense of anger at the government over the economy and allegations of corruption. Claire Bowes has been talking to union leader Subhash Malgi about why the government attempt to prevent the action with mass arrests and harassment backfired and to author Stephen Sherlock about how it became - what was at the time - the biggest strike in history and led to Prime Minister Indira Gandhi's declaration the following year of a national state of emergency.

Photo: Train from Darjeeling to Siliguri 1970. Credit: Paolo KOCH/Gamma-Rapho via Getty Images