Can I take the dMAT exam in German instead of English?

Yes, you can take the dMAT in German instead of English. The exam is available in both languages, and you choose your preferred one at registration, so the decision is entirely yours.

Which language most Indian applicants choose

Most Indian applicants select English unless they have already completed formal German-language training at the B2 level or above. The choice you make at registration applies to your whole test, so pick the language you can reason in fastest under time pressure.

How language affects each module

The Core Module is designed to be language-independent by nature, using figures, equations, and grids rather than prose, so both language choices work equally well for that portion.

For the Subject Module, choose whichever language you are more comfortable reasoning in using technical and analytical terminology from your own degree field.

My Advice

Unless you have genuinely completed formal German language training at B2 or above, choose English at registration. Attempting the Subject Module in German without strong technical German vocabulary adds unnecessary risk for most Indian applicants.