Section 2(18) treats a business vertical as a distinguishable component supplying individual or related goods or services with distinct risks and returns. A person with multiple verticals may obtain separate registrations per State subject to conditions: existence of multiple defined verticals, composition scheme ineligibility rules across verticals, and taxability of inter-vertical supplies with invoices. Rule 11 and related provisions prescribe application in Form GST REG-01, Superintendent examination, electronic notices and responses, deemed approval on official inaction, issuance of Form GST REG-06 with GSTIN characters, and effective date rules tied to liability or grant. (AI Summary)
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