Blackstone lines up three IPO exits from India in 2021 Premium Blackstone is in the process of taking three portfolio firms public, including a US listing for an IT services firm.bloomberg 2 min read Share Via Read Full Story Blackstone Group has lined up a robust pipeline of exits from its India portfolio this year. The New York-based alternative assets manager is in the process of taking three portfolio companies public, including a US listing for an IT services company, said two people familiar with the development. In all, Blackstone is preparing for at least four liquidity events during the year.