JPMorgan Chase & Co and UBS AG expect mergers advisory to account for a bigger slice of revenue in India next year as companies that bolstered their finances through stock sales in 2009 seek acquisitions. At least 30 per cent of revenue will likely come from M&A advisory in 2010, after equity underwriting accounted for more than 90 per cent so far this year, according to the heads of JPMorgan and UBS in India.