EWithout having a trading and demat account with a stock broker, you cannot invest in ETFs. However for any reason, if you are unable to open a trading and demat account, you can invest in “ETF like” investment products where you can invest in a passive fund which tracks an index. These are called Index funds which like ETFs aim to track a particular index like Sensex, Nifty, BSE – 100, Nifty 100, Bank Nifty etc. The fundamental attributes of index funds are like ETFs however Index funds are not listed on the exchange, while the investment process (purchase and redemption) is just like any other mutual fund scheme. The expense ratios of index funds are slightly higher than ETFs.