1. “A Case for Intelligence Reform in India.” IDSA Task Force Report 2012. https://www.idsa.in/system/files/book/book_IntellegenceReform.pdf
2. Andrew, C. Defence of the Realm: The Authorised History of MI5. London: Penguin, 2012.
3. Secret World
4. Balachandran, V. National Security and Intelligence Management: A New Paradigm. Mumbai: Indus Source Books, 2014.
5. Balachandran, V. Intelligence Over Centuries: From the Land of Canaan in the Pre-Biblical Times to Ukraine in the 21st Century. Mumbai: Indus Source Books, 2017.