bangaloremumbai advent international is dropping out of the private equity consortium led by carlyle group one of the two remaining bidders for patni computer systems in a move that leaves their effort to script a billiondollar plus acquisition of indias seventh largest it services firm in disarray this development means that only igate corporationbacked by apax partnersnow remains in the fray both igate and the carlyleled consortium which also included former wipro vicechairman and technology entrepreneur vivek paul placed bids which were estimated between rs 500 and rs 550 per share earlier this week with the rival bid in limbocarlyle and paul are unlikely to find a new partner at this juncturethe bid presented by igate and apax now looks set to clinch the deal next week however the patni family as well as general atlantic partners who together hold 63 stake have to take a formal call on the sale process when they meet early next week sources added advent had apparently communicated its decision to pull out of the race to its partners earlier this week advent was apparently not comfortable with warnings on the possibility of some patni clients deserting the firm in the event of an ownership change sources claimed