As benchmark indices Sensex and Nifty experienced significant selling throughout the day, let's see how a decision by the Bank of Japan played a major part in the market's direction. Today the BSE’s 30-share Sensex dropped by nearly 2.73 percent to 78,773 by 3.30 pm. There are several reasons behind the route from geo-political impact, to unemployment data from the US etc. But a major factor has been the rate hikes by the Bank of Japan.