Supplementary chargesheet

If a person is under judicial custody from one year under section 420 of IPC and police filed the chargesheet within 60 days so accused can not take the benefit of Section 167(2) of CrPC. Now everytime around 4-5 time police submitted the supplementary chargesheet due to this magistrate is not framing the charge so trial is not going to start. Now can we get the bail on this ground?? Is there any supreme court citation regarding limit of supplementary chargesheet??