As per the invitation I got, for the first five minutes I will discuss my biography, preferably focussing details beyond what is discussed in my CV. During the remaining 20 minutes I will discuss: my research experience and achievements, emphasizing heavy hadron (mesons, baryons and tetra-quarks) spectroscopy from lattice QCD, till now and the current calculations that I am involved in. Emphasis will be given on calculations involving the usage of state-of-the-art lattice technologies like derivative-based operator construction, distillation and variational method.