SAST DEEPAK FERTILISERS & PETROCHEMICALS CORPORATION LTD. - 500645 - Disclosures under Reg. 31(1) and 31(2) of … BSE India The Exchange has received Disclosure under Regulation 31(1) and 31(2) of SEBI (Substantial Acquisition of Shares & Takeovers) Regulations, 2011 on December 26, 2022 for Robust Marketing Services Pvt Ltd