Many investors want to play safe on the stock market and they resort to a strategy called “Buy it and forget it”, by investing in the index. However, the review of their investment is necessary as a lot of changes happen in the index constituents and its sectors over a period of time. As we enter a new decade from 2021, it will be interesting to see how the changes that have taken place in benchmark index Nifty-50 over a decade from –2010 to 2020—and how they have impacted the investors' fortune over the last decade.