GST rules amendment expands electronic verification methods and introduces deemed registration with updated form requirements. Amendments revise verification and signature requirements in the Haryana GST Rules to substitute 'digitally signed' and 'signed' with duly signed or verified through electronic verification code, expand acceptable verification to include e-signature and Board-notified modes, insert a deemed registration provision where a registration certificate not issued on the common portal within fifteen days is deemed granted, and amend various forms and cross-references including CMP-04, CMP-07, REG-12 and REG-25.