Mumbai: Firing yet another salvo at ally BJP, Shiv Sena today taunted it over the issue of supporting Bihar Chief Minister Jitan Ram Manjhi saying backing him would be a "sin" as it would be an endorsement of "black era in politics".

"Nobody should indulge in this sin of backing for political interest someone who has publicly said he accepts commission," an editorial in Sena mouthpiece Saamana said.