Private sector lender Kotak Mahindra Bank (KMB) is on course to have a customer base of 16 million by September, from the current level of 13 million, which also includes the bank’s 811 customers, managing director and CEO Uday Kotak wrote to the bank’s shareholders in its 2017-18 annual report. “On March 29, 2017, while launching 811, we had made a commitment to double our customer base in 18 months, that is, to about 16 million by September 2018,” he said.