Provided herein are improved, commercially viable and industrially advantageous processes for the preparation of Linezolid, in high yield and purity, using novel intermediates. In one aspect, provided herein are efficient, industrially advantageous and environmentally friendly processes for the preparation of linezolid, in high yield and with high purity, using novel intermediates. The processes disclosed herein avoid the tedious and cumbersome procedures of the prior processes, thereby resolving the problems associated with the processes described in the prior art, which is more convenient to operate at lab scale and in commercial scale operations.