Suparna is the founder of Aangan, established in 2002 with a mission to protect the most excluded and vulnerable children. She developed a unique model to partner with state governments, transforming the lives of rescued and trafficked children in state-run shelter homes across states.

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At Aangan, Suparna has championed the development of an integrated model for child harm prevention, effectively mitigating the occurrence and recurrence of serious harm to children across districts with high incidence of child harm.

Suparna was awarded the Ashoka Fellowship for Leading Social Entrepreneurs (2009), selected as an Asia 21 Young Leader (2011), an Edward S. Mason Fellow at the Harvard Kennedy School of Government (2012), and a member of the Ash Centre Fellowship for Democratic Governance and Innovation (2012). Her contributions to social entrepreneurship have been widely celebrated, with notable achievements such as being a finalist for the Jubilant Bhartia Schwab Foundation India's Social Entrepreneur of the Year (2015) and receiving the L'Oreal NDTV Women of Worth Award for Social Impact (2016). She is also recognised as one of CNBC TV 18's Young Businesswomen (2016) and serves as a board member at Dasra.

Her insightful writings have been featured in prominent publications including India Development Review, The Wire, and The Washington Post.