Virtusa Reports Closing of Majority Interest in Polaris; Sees Q4 Sales $169M-$172M vs $171.3M Est., Adj. EPS $0.43-$0.45 vs $0.45 Est.; Sees FY16 Adj. EPS $1.95-$1.97 vs $1.96 Est., Sales $597.4M-$600.4M vs $602M Est.