Bharti Airtel on Monday announced the resignation of Airtel Business' CEO Ajay Chitkara. "He'll continue with the company until the third week of August," Airtel said in a filing. Airtel Business will now operate in three segments, with Global business led by Vani Venkatesh, Domestic business led by Ganesh Lakshminarayanan and Nxtra Data Centers led by Ashish Arora, Airtel said.