Why invest in Fund of Funds Overseas?

Indian stock market has gone through tumultuous time many times which makes it highly volatile. Therefore, it is always asked investors to diversify the investments, but why to limit them only to the local market. Distribution of investments among local mutual funds, direct equity, fixed deposits, bonds and some sophisticated instruments may not be enough in times of general stock market downturns. Hence, it is suggested to invest in an overseas fund of funds to make steady gains over the long-term.