Both USA and India recognize the three year bachelors degree program as eligibility for an MBA or MTech course. This is because the British GCE school examination system has thirteen years of education, eleven up to O levels and two years for A levels. You just need to be aware that the degree is pursued from a recognized institute. For application to the U.S universities he must have a consistently high grade average at the UK university and good GRE and TOEFL iBT scores.