Can you give me a brief idea about whether local language proficiency is mandatory for studying in Italy, Germany, or Singapore?

You do not need to speak Italian, German, or a Singaporean local language to study in these countries, as long as you enroll in an English taught program. What actually changes is which language certificate you submit alongside your application, and how easily you will manage daily life outside campus.

Language Requirements By Country

The Catch In Each Country

• Germany: if you pick a German taught program you need TestDaF or DSH, usually at B2 or C1 level, and basic German is recommended for daily life and part time jobs.
• Italy: if you pick an Italian taught program you need CILS or CELI at roughly B2 level, and picking up everyday Italian still helps outside the classroom.
• Singapore: local languages like Mandarin, Malay, or Tamil are only compulsory in the local school system, never at university, and English fluency is universal across NUS, NTU, and SMU.

My Advice

Confirm the medium of instruction on each program page before you apply, and start your IELTS or TOEFL preparation early regardless of country, since that single certificate covers your admission needs across Germany, Italy, and Singapore's English taught routes.