His present research interests are: transition metal oxide-based memristors, complex perovskite oxide based memristors, biorealistic compact modeling of memristors for neuromorphic applications, RRAM fabrication, characterization and modelling, applications of graphene and two-dimensional (2D) materials for resistive switching applications, investigation of the human brain by biomimetic electric-circuit simulation (SPICE) and analog circuits based on the combination of CMOS and memristors. Still some activity in the area of oxide breakdown and dielectric reliability in CMOS technology is also carried out.