Mandatory ASBA facility for public issues strengthens subscription channels and updates intermediary roles. The regulations add registrar to issue and share transfer agents, depository participants and stock brokers into multiple issue-related provisions; mandate the ASBA facility for public issues and for certain rights-issue scenarios with specified investor-category limitations; designate stock brokers, SCSBs, registrars and depository participants as bidding/collection centres; broaden intermediary references to 'SEBI registered intermediaries'; tighten lead merchant bankers' post-issue reporting timelines; omit Part A of Schedule XVI and adjust cross-references; and require disclosure of website links listing relevant intermediaries.