Sabu is educated in the field of Plant Sciences and has working experience in plant genetics, biotechnology and bioinformatics since 1995. The PhD degree was awarded in 2002 by University of Kerala. After conducting doctoral research at Jawaharlal Nehru Tropical Botanic Garden & Research Institute (JNTBGRI), Thiruvananthapuram, he proceeded to National University of Malaysia for Post-doctoral research (2002-2005). He published more than 20 research articles in national/international journals and participated in many conferences held in India, Malaysia, and Australia. Currently he is a Scientist at JNTBGRI and operate in-house as well as external funded projects and guiding MSc and PhD students for their thesis work.