What is VISA Full Form
VISA full form is Visitor International Residence Admission. It is a permit for a person to enter and stay in the country for a specified period of time.
Entry into the country other than a VISA requires the approval of the immigration officer of the country.
The VISA can usually include the period of residence of a foreigner, the area within the country of entry, the date of entry, the number of visits allowed, or the limit of the person working in the country.
It is a one-man government permit to visit and stay in the country for a specified period of time, which allows a foreigner in an area by a conditional authority to allow them to enter, stay or leave in that particular area.
A VISA allowed by an immigration officer at the time of entry and can be revoked at any time. It usually takes the form of an approved sticker on the applicant’s passport or other travel documents.

What are VISA and Passport
A passport is used to verify the citizenship of a citizen if you travel outside your country, it is used to enter your citizenship country.
A passport is a document of identity and contains a person’s name, date of birth, gender, address and place of birth. Passports are documents that nationals provide to citizens of the country.
But a VISA requires an application before entering the country, and other VISA’s are issued after entering the country. its validity may be valid for one or more visits depending on where you are traveling.
Indian passport holders can travel to 25 countries without a visa while 41 countries issue visas to Indian passport holders upon arrival, 132 countries require Indians to travel with pre-visas.
Every year every country is placing its passport according to its strength, basically, how many countries do you need to get a visa to travel with a specific passport.