SEBI amended key regulations on December 3, 2025, replacing “Registered Post” with “Speed Post” to modernize document delivery in the securities market. The change applies across four major frameworks: Collective Investment Schemes (CIS), Prohibition of Fraudulent and Unfair Trade Practices (PFUTP), Intermediaries Regulations, and Issue of Capital and Disclosure Requirements (ICDR). Intermediaries and Registrars must immediately update their dispatch systems for critical documents including refund orders, allotment letters, unit certificates, legal notices, and ASBA fund unblocking instructions. This shift aims to reduce transit time, provide better tracking mechanisms, and ensure higher delivery success rates for critical financial documents.