A complete patent application is the kind of application which discloses the invention completely and is filed in the form of several documents that are required as per the Indian patent Rules.

Yes, complete specification is examined by the examiner because it involves examination of claims .

Registry may or may not raise objection after examination of the complete specification.

Yes, a request has to be made with the registry for examination of the application along with the requisite form and fee.

Getting Patent protection depends on the registry. It can vary from 8 months to 1-2 years.

No. It is not mandatory to file a provisional application before filing a complete application. But if a provisional application has been filed, one must file complete application within twelve months of the filing date pf provisional application.