CRMW International Convention on the Protection of the Rights of All Migrant Workers and Members of Their Families ICCPR International Covenant on Civil and Political Rights ICESCR International Covenant on Economic, Social and Cultural Rights IDC International Detention Coalition LTV Long-term Visa MEA Ministry of External Affairs NHRC National Human Rights Commission NRC National Register of Citizens OHCHR Office of the United Nations High Commissioner for Human Rights PCIJ Permanent Court of Justice PDS Public Distribution System UN United Nations UNHCR United Nations High Commissioner for Refugees UDHR Universal Declaration of Human Rights  21