Visa is a written permission to indicate that a person is prima facie allowed to enter a specific country (subject to the Immigration Official's final approval at the time of actual entry). It has more than enough experience and expertise to prepare and submit visa applications to the Embassy / High Commission or Consulate of the country concerned. Goodway also keeps the latest & updated eligibility information, documentary requirements and prescribed fees for each country for different categories of visa applications.
The visa stamp placed by an Embassy or Consulate in your passport shows the period you may enter the country in question. If the date on the visa stamp expires while you're in that country, it won't need to be renewed until you leave the country and want to return, as long as you maintain your legal status throughout your country stay. This means you must always have a valid visa document. Only if you remain in full-time student status will the visa document be valid.