Professor Mukherjee has extensive experience litigating civil rights and immigrants' rights issues. Prior to joining Columbia Law School, she was a staff attorney at the ACLU Racial Justice Program. In that capacity, her work included serving as lead counsel in a suit that successfully reformed Nebraska's ballot access laws; serving as counsel in cases challenging anti-immigrant state laws in Alabama, Georgia, and Utah; and helping to coordinate efforts to reduce racial profiling nationwide. Previously, Professor Mukherjee had served as the Marvin M. Karpatkin Fellow at the ACLU Racial Justice Program from 2006 to 2007. As a fellow, among other matters, she worked on all aspects of investigating, litigating, and settling suits for immigrant children detained under prison-like conditions at the T. Don Hutto detention center in Texas.
From 2007-2010, Professor Mukherkee was an associate at Emery Celli Brinckerhoff & Abady, LLP, litigating a broad range of civil rights cases.