My research interest is to study Quantum Chromodynamics (QCD), which is the theory of strong interactions in the Standard Model of particle physics. Quark-Gluon Plasma (QGP), a hot and dense QCD matter, is produced in relativistic heavy-ion collisions. Unlike in ordinary matter, quarks and gluons are not confined within short distances but can roam freely over distances larger than the hadronic scale in the state of QGP. Understanding this novel state of matter offers a new way to learn how quarks and gluons bind to form stable particles like the proton. In my group we use special probes, such as heavy quarks (charm and beauty), to study the properties of QGP. These studies are performed using the ALICE detector at the Large Hadron Collider (LHC) at CERN.