SAST HINDUSTAN ZINC LTD. - 500188 - Disclosures of reasons for encumbrance by promoter of listed companies … BSE India The Exchange has received the Disclosures of reasons for encumbrance by promoter of listed companies under Reg. 31(1) read with Regulation 28(3) of SEBI (SAST) Regulations, 2011 on April 19, 2023 for Vedanta Ltd