Atomberg Technologies and Ratnadeep Retail were among four companies that received approval from the Securities and Exchange Board of India (SEBI) to proceed with their proposed initial public offerings (IPOs). GNI Infrastructure and Punjab Carbonic were the other two companies to receive observations from the capital markets regulator. Atomberg Technologies filed its draft red herring prospectus (DRHP) with SEBI on August 20, seeking to raise funds through an IPO.