Roy writes extensively, mostly socio-political articles, both in English and in his native Bengali. He has been published in The Statesman, BJP Today, Desh (Bengali fortnightly) and several others. He has authored seven books: •
Bampontha Bhayankari: Banglay o Bideshe (Bengali) (Mitra & Ghosh, Kolkata, 2020) •
Bharatkeshari Yugpurush Syamaprasad (Bengali) (Mitra & Ghosh, Kolkata, 2018) •
Ja Chhilo Amar Desh (Bengali) (Mitra & Ghosh, Kolkata, 2016) •
My People, Uprooted: The Exodus of Hindus from East Pakistan and Bangladesh (Synergy Books India, New Delhi, 2016), earlier published under the title
A Suppressed Chapter in History: The Exodus of Hindus from East Pakistan and Bangladesh, 1947-2006, (Bookwell, Delhi, 2007) • "Syama Prasad Mookerjee: Life and Times", (Penguin/Viking, Delhi, 2018), earlier published under title
The Life and Times of Dr. Syama Prasad Mookerjee, (Prabhat Prakashan, Delhi, 2012). Also translated into Hindi under title
Apratim Nayak Dr. Syama Prasad Mookerjee (Prabhat Prakashan, Delhi, 2012) •
Tathagata Rayer Nirbachito Probondho Songroho (Bengali), Vivekananda Sahitya Kendra, Kolkata, 2008 •
Engineering Contracts in India: Law, Practice and Management, (Bharat Book Agency, Calcutta, 1990) == Family ==