NEW DELHI: Supreme Court said on Tuesday that prima facie it is convinced that there was a calculated and deep-rooted conspiracy between realtors and financial institutions to exploit the subvention scheme, causing harassment to homebuyers who kept paying EMIs for years for flats which remain elusive. In response to several builders’ plea that homebuyers have no grievance against them, SC refused to keep any realtor accused of delaying delivery of flats after joining the subvention scheme out of the purview of CBI’s probe. Additional solicitor general Aishwarya Bhati informed that in compliance of court orders, CBI has so far registered 28 regular cases, or FIRs, against builders and has completed probe in three cases where chargesheets have been filed. The bench asked the trial court to decide on taking cognisance of the chargesheets within two weeks and then proceed expeditiously with the trial.