In 1985, after obtaining his diploma in publishing, Davidar was hired by
Peter Mayer, then chairman of the multinational publishing company
Penguin as one of the founder members of Penguin India. As its first Editor, and later Publisher, Davidar edited or published a distinguished line-up of authors including Shashi Tharoor, Vikram Seth, Ruskin Bond, Kiran Desai, Romila Thapar, Rajmohan Gandhi, Arundhati Roy, Pavan K. Varma,
Khushwant Singh, Vikram Chandra, Salman Rushdie, Dom Moraes, William Dalrymple, Damon Galgut, and Nandan Nilekani. In the course of his career with Penguin in India, Davidar held a variety of senior positions, among them, Publisher, Penguin India; CEO, Penguin India; Managing Director, Dorling Kindersley India; and CEO, Pearson India. In 2004, he moved to Toronto, Canada, as Publisher, Penguin Canada, where the authors he published included Philip Roth,
Khaled Hosseini, John Le Carre,
Stieg Larsson,
Nadine Gordimer,
Alice Munro,
Fatima Bhutto,
Amitav Ghosh,
Margaret Macmillan,
Zadie Smith, Kim Echlin, Hisham Matar, Joseph Boyden, Adrienne Clarkson, and John Ralston Saul. In Toronto, the various positions he held at the company included the following: Publisher, Penguin Canada; CEO and Publisher, Penguin Canada; and CEO, Penguin International, a division of Penguin Books that comprised Penguin companies in Canada, India, South Africa, and the Middle East. In August 2010, he moved back to India from Toronto to co-found
Aleph Book Company, in partnership with
Rupa Publications India, one of the country's largest English-language trade publishers. ==Novelistic career==