Yes, you surely can apply for ACCA at colleges in UK after completing your B. Com. Admission criteria for ACCA may be different at different colleges. To find out information about admission requirements, you better visit a website of college you are interested in. List of some of the good ACCA colleges in UK are available here:

http://qna.educouncil.org/Universities_and_Colleges/nZxyNXyynZy.html

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