SSB Interview: The Complete Guide About the Author Dr. (Cdr.) N.K. Natarajan has an experience of over 25 years in the Indian Navy and a three year stint as a Group Testing Officer at the Selection Center in Bhopal. In addition to serving in the navy, he also holds a degree in management and a doctorate in psychology. He has helped assess more than 1500 candidates during his term as a selection officer. 				    	 				        	--This text refers to the Kindle Edition edition.