ESAF Small Finance Bank is an Indian small finance bank headquartered in Thrissur, Kerala, providing banking services and small loans to the underbanked. Having started its operations as an NGO in 1992 under the name of Evangelical Social Action Forum, ESAF Microfinance was a non-banking finance company and microfinance institution, licensed by the Reserve Bank of India. It became a small finance bank in March 2017 and started operating in January 2018. Wikipedia