All flow of UPSI must be logged into the Structured Digital Database alongwith the required details.
Non-maintenance, incomplete maintenance, outsourcing, lack of time stamping, maintenance on alterable media, incomplete or delayed availability of required information etc all considered non-compliance.
Non-maintenance of SDD is considered a contravention of the Insider Trading Regulations, with complete rights to deal with any such contraventions retained by SEBI.
That is why a system like Affinis(SDD) would be required as it is fully compliant with all SEBI requirements.