Vikram Akula, the founder and former chairman of Indian group-lender SKS Microfinance, recently bought 26-percent stake in the start-up Vaya Finserv. Launched in 2014, Vaya Finserv has plans to acquire a “small finance bank” license, which will it will use to provide credit to individuals in India who have been rejected by traditional banks, primarily women’s self-help groups.