Hey,
Masters of Arts(M.A) Mass Communication is a two year postgraduate programme.
Yes,you can get admission in MA in Mass Communication irrespective of the two year gap after your 12th.
The basic eligibility criteria for admission to MA in Mass Communication is a Bachelors degree in any stream of minimum three years duration. Generally,there is no age restriction but there are certain colleges that do not allow candidates above 30 years of age. So it depends on the College you are applying in.
Hope this helps.
Good luck.