It's estimated that 18–20% of Bihar’s urban migrants are women. Despite this, their labour remains largely unrecognised and underpaid, with many earning just Rs 6,000–10,000 per month, without formal contracts or legal protections.
Election Commission’s Special Intensive Revision exercise in Bihar removed approximately 22.7 lakh women from the electoral rolls, classifying them as “permanently shifted” because they could not be physically traced.
Bihar has one of India’s highest rates of out-migration. According to the 2011 Census, about 74–75 lakh people from Bihar migrated out of the state, mostly for work, and this represented about 7% of Bihar’s population at the time.