[3] Having tried unsuccessfully to become an actor, he took a scriptwriting course and began writing for TV;[5] then turned to books, debuting with That Thing Called Love in 2007.

[13] On 31 January 2014, Sinha joined the Bharatiya Janata Party (BJP); in December 2016, he was appointed spokesperson for Mumbai region.

[15][16] In 2017, Sinha filed a plea against Rahul Gandhi, then vice-president of the Congress Party, in the Delhi High Court, alleging that Gandhi had violated the Special Protection Group Act by giving his security detail the slip; the court refused to rule on the matter, saying security was a matter for the government.

[7] Reviewing The Edge of Desire, Kulkarni found the work to be a one-time-read that suffered from the intense cramming of a multitude of political affairs.

[20] Sayoni Aiyar for News18.com deplored how Sinha's female lead character defined herself entirely by relationships with men in her life.