Over the past weeks, the poaching war among IT heavyweights has heated up, with Bengaluru-headquartered Infosys accusing Cognizant of allegedly resorting to unethical poaching tactics. As per reports, Cognizant CEO Ravi Kumar, who was previously with Infosys, has hired nearly 20 senior leaders in the company - several of them were earlier with Infosys and Wipro.