The charge density wave (CDW) is a unique phenomenon mostly realized in two-dimensional (2D) metallic layered transition metal dichalcogenides. We report on the observation of commensurate CDW (C-CDW) and incommensurate (I-CDW) transition in single crystal 1T-VSe 2 using the spectroscopy technique in the temperature range of 50-120 K. The room temperature Raman spectra showed a sharp A 1g mode ∼206 cm −1 along with two additional modes associated to E g ∼ 257 cm −1 symmetry and two-phonon (2 ph) ∼ 332 cm −1 interactions. The onset temperature of I-CDW and C-CDW is estimated from resistance measurements supported by magnetic measurements. Remarkably, at the onset of I-CDW ∼ 115 K, a significant enhancement in the intensity of the weak E g mode is observed along with emergence of a doubly degenerate E g (2) mode ∼144 cm −1 , while below 70 K, the emergence of the A 1g mode ∼170 cm −1 signifies the onset of C-CDW. The observation of a sudden rise in the intensity of the E g mode ∼257 cm −1 mode, below I-CDW, showed the involvement of electron-phonon coupling in 1T-VSe 2 .