A method of splicing a first data stream and a second data stream is disclosed. The method comprising detecting a splice in-point and a splice out-point within the first data stream, wherein the splice in-point is a frame in the first data stream and the splice out-point is another frame in the first data stream. The method further identifies splice-in opportunity point and a splice-out opportunity point from a plurality of splice opportunity points (SOPs) in the first data stream, wherein the splice-in opportunity point corresponds to the splice in-point and the splice-out opportunity point corresponds to the splice out-point, wherein the splice-in opportunity point and the splice-out opportunity point are frames of the first data stream. The method replaces at least one frame of the first data stream with at least one frame of the second data stream, wherein the replacement of the frames of the first data stream starts onwards the splice-in opportunity point and ends at the splice-out opportunity point; and wherein the first data stream includes a plurality of frames and the second data stream includes a plurality of frames. The method performs the splicing operation without de-packetization of the first data stream. In addition, the replacement of the frames does not require re-ordering of the frames of the first data stream.