Sensex, Nifty Down: Edward A. Murphy's law, 'Anything that can go wrong will go wrong,' seems quite relevant for India's Dalal Street right now. With little to no optimistic factors driving the markets up, stability appears a faraway picture for investors. Subdued corporate earnings and weak macro data had already kept the market under pressure, and now with the Union Budget, the Fed’s interest rate decision and the monthly expiry all happening this week, the volatility is only getting worse.