As Scylla mentioned, if you just have your COPR document and PR visa but have not yet actually traveled to Canada to "land" as a PR, then you are not able to get your PR. If you tried to go to Canada to land but had actually broken up from your spouse, that would be considered misrepresentation and immigration fraud.
Also if you have broken up your husband may have already talked to CIC to cancel your COPR and withdraw your application, meaning if you tried to travel to Canada to land CBSA would see this and simply refuse your landing and entry to Canada, and you would need to return back to India.
If your husband is the one that actually has your COPR document, then you have no chance of getting it back.
Since you have applied for PR via family class and you no longer have family in Canada, then you should not expect to be able to immigrate here anymore under that class. You should find another immigration stream that you can immigrate here independently.