Minimum public offer requirement governed by securities contracts rule clause, defining thresholds for initial and further public offers. The regulation requires a minimum net offer to the public and makes that requirement subject to clause (b) of sub rule (2) of rule 19 of the Securities Contracts (Regulations) Rules, 1957; previously the provision specified minimum percentage thresholds for initial and further public offers, now delegated to the cited Securities Contracts Rule for exact thresholds and reservation mechanics.