Dogged by allegations that he shielded the accused in the multi-crore fake stamp scandal, Mumbai Police Commissioner R.S. Sharma today stepped down from his post, a fortnight before retirement. In a clear deviation from traditional norm, Sharma handed over charge to an IPS official of a lower rank: Joint Commissioner of Police (Crime) Satya Pal Singh. The changeover reflected the tumult in the ranks and within the state administration as it grappled with the controversial issue of appointing Sharma’s successor. Guilty should get no support: Sonia