hi,

see for higher studies the gap of year does not matter much, you may have seen that there is many candidates who are doing job and after 3-4 years they are opting for mtech admission. to get admission in any foreign university your academic score, letter of recommendation , extra curricular activities, your GRE or toefel score matters most.

do try to make good score, a well defined final year project to boost up the possibility to get selection.