Founder of $7.7 billion (revenues) Adani Group, country's biggest port operator, Gautam Adani has continued to face headwinds. Shares of flagship Adani Enterprises fell by a fifth in past year, dragged down by its money-losing power company, Adani Power; that business is awaiting permission from the electricity regulator to raise its tariff to cover rising costs. Group is among bidders to build a new terminal on western coast at JNPT port. It is also close to sealing a deal to buy a port jointly owned by the Tata Group and engineering firm Larsen & Toubro for $800 million. To help reduce his company's debt, Adani paid $235 million, plus took on undisclosed debt, for its Abbott Point coal terminal in Australia.