Does the dMAT certificate expire, or do I need to retake it for a later intake?

No, your dMAT certificate does not expire. It is valid indefinitely once issued, and most applicants sit the test only once, so you will not need to retake it just because you are applying for a later intake.

Why the certificate stays valid

The dMAT certificate is valid indefinitely once issued. There is no need to retake it for a later intake, whether that is Summer 2028, Winter 2027/28, or beyond.

The only reasons you might retake it

The two exceptions are if you specifically want to try for a higher score, or if APS India introduces revised requirements at a future date. Any such change would be communicated through official channels, so you do not need to second-guess it in the meantime.

My Advice

Once you have your certificate, file it away as a one-time document and move your attention fully to your SOP, university shortlist, and visa planning. There is no recurring dMAT task to track for future intakes unless the rules themselves change.