As a PAF source answered my query in diplomatic tone.... ''It was the Russian minister and a Russian source who disclosed and carried the news.... no Pakistani official made any statement to that effect.
Presently PAF is content with the overall situation, it's JF-17 programme is progressing well, Falcons have been upgraded , Vipers are operational with more likely joining them, no doubt in due course PAF will hunt for more Falcons and bring them up to grade.... it's also a strong contender for J-31...,.smooth sailing.
As for SU-35, wonder where there's smoke, there's a ''chitta'' burning.