Does my IELTS score of 6.5 with some modules at 5.5 qualify for admission in Malta for a Postgraduate?

It depends. An overall IELTS score of 6.5 is generally acceptable for many universities in Malta, but most require at least 6.0 in each module (listening, reading, writing, speaking) for postgraduate admission.

Having some modules at 5.5 may be a concern. Some universities may offer conditional admission or pre-sessional English courses if you meet academic criteria but fall short in English.