Lead manager post-issue obligations ensure ongoing investor grievance redressal, coordination with intermediaries, and regulator reporting. Lead manager(s) remain responsible for the post-issue process until allotment, credit to demat accounts or refund and listing processes are completed. They must monitor investor grievance redressal, coordinate with registrars and other intermediaries to oversee application processing including ASBA, ensure crediting and unblocking or dispatch of refunds, report any intermediary omission or commission to the Board, and ensure issuance of devolvement notices and furnishing of underwriter default information in the prescribed format.