Mumbai, followed by Delhi, was among the most populated metros with a population of 18,394,912 and 16,349,831 respectively. Kolkata had 14,035,959, as per the 2011 Census. According to the NCRB study, the common causes of trafficking were forced marriages, child labour, domestic help and sexual exploitation, among others.from News-Economic Times https://ift.tt/2tKaL2v
