She studied at Melbourne's prestigious Lauriston Girls' School and her brothers attended Scotch College.

Singh has contributed to around 50 Lonely Planet books (usually as senior author) including many editions of the bestselling India guidebook, as well as Rajasthan, Aboriginal Australia & the Torres Strait Islands, North India, Mauritius, Réunion & Seychelles, Pakistan & the Karakoram Highway, South India, Australia & New Zealand, Delhi, Melbourne, Sydney and Africa.

[1][4] She has been interviewed by dozens of broadcasters, including the BBC and ABC, for her travel expertise.

[1][2][4] The documentary, a German-Australian co-production for the Australian public television network, SBS, is set in India and depicts the changing roles of two royal families in former princely states and the challenges they face to stay viable in modern-day India.

The documentary premiered at the Melbourne International Film Festival, before screening on television in Germany and on SBS in Australia.