Our main research area on quantum transport properties of mesoscopic structures in reduced dimensions like two-dimensional graphene, two-dimensional transition metal dichalcogenides, topological insulator and one-dimensional nanowires. We extensively study their properties in vertical heterostructures geometry, which gives us unique opportunity to pursue the emerging field in 2D. Our techniques are based on ultra low current measurements (<100fA) at ultra low temperatures (0.24K) and high magnetic field (10T). We have expertise on quantum capacitance technique with resolution less than ~ 1fF to study the electronic dispersion of heterostructures as well as the compressibility of electrons in quantum hall regime. We also use noise measurements (1/f and quantum noise) to know the screening properties as well as charges and statistics of quasi-particles.