Watches and jewellery maker Titan Company Ltd slumps as much as 6.7 percent.  Heads towards biggest single-day fall since Sept. 2013. July-Sept. earnings lagged some estimates.  Profit rose 28.6 percent to 2.4 billion rupees ($39.12 million) and sales rose by 55.7 percent to 35.65 billion rupees.  Strong sales growth driven by one-off jewellery sales led by the foreclosure of advance purchase schemes, says analysts.  Shares down 4.5 percent at 0406 GMT.