MULTAN: Former premier Yousaf Raza Gilani has said the incumbent government has failed in fulfilling promise of South Punjab province. While talking to the media on Friday, Gilani said there will be no benefit of making a separate secretariat for South Punjab as it will be taken as an extension of Lahore. He said until and unless, a separate province for South Punjab people is created, there will no benefit of separate secretariat. He hoped that the PML-N will support the PPP candidate in by-elections in PP-218 Multan.