ELSS (Equity-Linked Savings Scheme) mutual funds are eligible for tax deductions under section 80C of the Income Tax Act, 1961, and are suitable for medium to high-risk investors. The top five ELSS funds by assets under management include Axis Long Term Equity Fund, Aditya Birla Sun Life Tax Relief '96, Mirae Asset Tax Saver Fund, ICICI Prudential Long Term Equity Fund, and DSP Tax Saver Fund, each with varying sector allocations and five-year returns. These funds primarily invest in sectors like banks, pharmaceuticals, and technology, offering significant potential for both growth and tax benefits.