Dr Taneja completed his residency in ophthalmology (M D Ophthalmology) at All India Institute of Medical Sciences (AIIMS), the prestigious and premier Medical College of India in 2003.During his tenure at AIIMS, he specialized in all techniques of complicated cataract and glaucoma surgeries. He then completed fellowship in treatment of retinal and vitreous diseases and surgery at the L V Prasad Eye Institute, Hyderabad, India a leading center for retinal/vitreous research and training. His special area of research was in diseases of posterior uveitis, ocular infections and optic neuropathies.