He is the founder of Donason Deen Education Centre and Donason Deen Research Centre. He is an Engineer turned teacher with First Class Honours Degree in Bachelor of Engineering. He is a member of the Institution of Engineering and Technology (UK) and the Institution of Engineers (Singapore). His passion for teaching and training prompted him to become a certified and registered hypnotherapist as well as a member of American Board of Hypnotherapy (California), National Guild of Hypnotists (New Hampshire) and Florida Society of Professional Hypnotherapists (Florida). 

He is a member of the old RafflesianAssociation.    He has authored the Self Hypnosis Audio series which includes the “Self-Hypnosis for Students” programme. Having founded the “Neuro-reprogramming seminars for breakthrough performance”, his depth of understanding of the students’ psychology and wealth of knowledge in the subject matter would certainly benefit students enabling them to produce peak performance in their examinations. He is author of “Achiever’s Series” of textbooks for Chemistry and Mathematics. Other titles that he had authored are "Is your child a genius?" and "26 ways to outsmart Singapore Exams!".