Complex sentence: Official sources at HSL said more than 90% of the work has been completed on the seventh submarine of the Sindhughosh-class INS Sindhukirti & she is scheduled to re-join the fleet on 31 March 2015.
Split into simpler sentences: Official sources at HSL said more than 90% of the work has been completed on the seventh submarine of the Sindhughosh-class INS Sindhukirti. She is scheduled to re-join the fleet on 31 March 2015.