Following her two-year law career she wrote Beyond the Courtroom: a lawyer's guide to campaigning, which was published by the Legal Action Group in 2005.
She joined the Electoral Reform Society as Chief Executive in 2010, and was a regular media commentator on elections and voter disengagement.
Ghose is currently an independent council member of the University of Sussex and a trustee of St George's House, Windsor Castle.
She was a board member of the US democracy group Fair Vote (2010–2017) and a trustee and Company Secretary of Stonewall (2005–2011) and was chair of two charities, Asylum Aid (1997–1999) and Bail for Immigration Detainees (2002–2004).
She left by mutual agreement after video emerged of her online thanking UKIP and particularly the party's then-MP Douglas Carswell for their support for electoral reform .