scylla said:
Yes - there are several. To the best of my knowledge someone holding an Indian passport requires a visa to enter every single one of them.
That being said, immigration impediments are expressly one reason that a relationship may be a valid conjugal partnership. From CIC guide
OP-2 (pdf, page 33):
[quote author="OP 2"]
The conjugal-partner applicant should explain why they have not been able to live continuously with their sponsor for at least one year. In most cases, there will be an immigration impediment to
continuous cohabitation (e.g., inability to obtain long-stay visas for one another’s country). Non-cohabitation for purely personal or economic reasons (i.e., did not want to give up a job or studies) does not normally qualify as a sufficient impediment, but should be assessed on a case-by-case basis. Applicants should be able to provide evidence that they have seriously considered living together as common-law partners. For example, they might have explored options for living together in one another’s country, such as work or study permits, how their occupational skills and qualifications would be recognized in their partner’s country, visitor visas, long-term visitor status, etc.[/quote]
Still a conjugal partnership seems to be an almost automatic "red flag", so applicants should expect a long and difficult process.