Perplexity AI, founded by Indian-origin CEO Aravind Srinivas, is a conversational search engine tool valued at over $9 billion.Backed by prominent investors, Perplexity AI aims to build the world's most knowledge-centric company.Sridhar Ramaswamy, CEO of Snowflake, commended Perplexity's API-driven approach and successful product innovation.Aravind Srinivas, an IIT Madras graduate and former research scientist at OpenAI, has been waiting for his green card status in the United States.