Bharti been working on issues related to women and children since 1991. She is the founder and Co-Director of HAQ: Centre for Child Rights.
She has also been the National Convenor of CACT (the Campaign Against Child Trafficking in India), since its initiation till 2005.
Bharti is a Member of the Central Advisory Board on Child Labour set-up by the Ministry of Labour and Member of the Working Group set up by the National Commission for Protection of Child Rights on "Protection of Rights of Children at Railway Platforms".
Recently, the Minstry of Women and Child Development nominated her as one of the Experts on Child Protection for its web-based helpline service. She has authored several publications, articles and reports on issues concerning women and children. Her work on policy advocacy has has been largely as part of the various drafting groups set up by the Government of India, such as the Working Group on Women and Children and the Sub-Group on Child Protection set up by the Ministry of Women and Child for the Eleventh Plan Document; the Drafting Committee for the Juvenile Justice Model Rules; the drafting group on Violence against Children in India submitted to the UN Special Rapporteur on Violence against Children, among others.
She has represented India in various International conferences and consultations. Her international work includes her election to KOORA, the Coordination Committee of a German based NGO terre des hommes and participation in International Conferences on Trafficking in Women and Children as part of the International Campaign Against Child Trafficking (ICACT) as well as Regional Conferences on Violence Against Children.