In what will be its biggest acquisition, software services giant Wipro said on Thursday it would buy privately-held British consultancy firm Capco for $1.45 billion. The Azim Premji promoted firm said the acquisition would it catapult to one of the largest end-to-end global consulting, technology and transformation service providers to the banking and financial services industry. The Capco buy should see Wipro gaining access to access to 30 new large BFSI clients. CEO and MD Thierry Delaporte told analysts financial institutions were investing in technology more than ever.