Darwinbox has more than tripled its valuation to become a unicorn after a new $72-million funding round led by Technology Crossover Ventures. The round took the Hyderabad-based startup's all-time raise to over $110 million and valued it at over $1 billion. Founded by Jayant Paleti, Rohit Chennamaneni and Chaitanya Peddi in 2015, Darwinbox provides HR tech to companies including Starbucks.