There is a good chance that you will be assessed as Bachelors, because, basically you did 10+2+2.
Through many people's responses, what I have observed, WES followed this trend in awarding equivalencies, however this should not be taken as an absolute guide, equivalencies may vary from case to case:
12 + 3 = Bachelors (3 Years)
12 + 4 = Bachelors of Bachelors (4 years)
12 + 1 (Some Diploma) + 3 = Bachelors (4 Years)
12 + 3 + 1 (Some Diploma) = Bachelors + Diploma and in some cases, Bachelors (4 Years)
12 + 4 + 2 (Masters) = Masters
12 + 3 + 2 (Masters) = Bachelors + 1 year Post graduate Diploma
12 + 4 + (MBA from Non IIM/IIT) = Bachelors + 2 Year PGP
12 + 4 + MBA from IIT or IIM = Masters
Yours is a very peculiar case, I am not sure that they would even consider your Bachelors because globally bachelor's is a 3 (in Europe) and 4 year (in North America) programme.