Singh describes himself as 'an author, journalist and TV producer, specialising in science and mathematics, the only two subjects I have the faintest clue about.' 
Background and education
According to his own account:
- My parents emigrated from the Punjab in India to Britain in 1950. I grew up in Wellington, Somerset, and then went to Imperial College London, where I studied physics, before completing a PhD in particle physics at Cambridge University and at CERN, Geneva. 
- Sense About Science
- Science Media Centre Board 2002-2012; Advisory committee 2012-present.
- Libel Reform Campaign (run by Index on Censorship, English PEN and Sense About Science)