A visa generally gives non-citizens clearance to enter a country and to remain there within specified constraints. Each country typically attaches various conditions to their visas, such as duration of stay, the territory covered by the visa, dates of validity, whether the visa is valid for more than one visit, etc. Each country has a multitude of categories of visas and with various names. In any event, Visa is subject to permission of an immigration official at the time of actual entry and can be revoked at any time.
We understand your need to visit and work through all the modalities to provide your relevant visa.