Does having a three-year bachelor's degree affect my eligibility for master's programs abroad in UK/Germany for a Diploma/Postgraduate?

It depends on the country and university.

- UK: Many universities require a four-year bachelor's degree, but some accept a three-year Indian degree, especially with strong academics. You may also be eligible for a Pre-Master’s or Postgraduate Diploma as a pathway. - Germany: Most universities expect a four-year degree. Some may accept a three-year degree if it’s considered equivalent, but this varies by institution. - UAE: Universities generally accept three-year Indian bachelor’s degrees for master’s admission.

Requirements are subject to change and vary by university.