We present a subset of experimental results on charge fluctuation from the heavy-ion collisions to search for phase transition and location of critical point in the QCD phase diagram. Measurements from the heavy-ion experiments at the SPS and RHIC energies observe that total charge fluctuations increase from central to peripheral collisions. The net-charge fluctuations in terms of dynamical fluctuation measure ^V_(+−,dyn) are studied as a function of collision energy (√^𝑠𝑁𝑁) and centrality of the collisions. The product of ^V_(+−,dyn) and⟨𝑁_ch⟩ shows a monotonic decrease with collision energies, which indicates that at LHC energy the fluctuation shave their origin in the QGP phase. The fluctuations interms of higher moments of net-proton, net-electric charge, and net-kaon have been measured for various √^𝑠𝑁𝑁. Deviations are observed in both 𝑆𝜎 and 𝜅𝜎² for net-proton multiplicity distributions from the Skellam and hadron resonance gas model for √^𝑠𝑁𝑁