USA Students Visa:

USA Students Visa:
The United States welcomes foreign citizens who come to the U.S. to study or participate in an exchange program. Before applying for a visa, all student and exchange visitor applicants are required to be accepted and approved for their program. When accepted, educational institutions and program sponsors will provide each applicant the necessary approval documentation, to be submitted when applying for a visa.
In order to study at colleges and universities in the United States, international students must first apply for a U.S. student visa. To do so, a number of procedures and guidelines must be followed, and the required documents must be completed and admitted, each within a specified time frame.
USA Student Visa is dedicated to assisting international students with all their immigration needs. Whether you want to learn English at a ESL school or obtain a degree from a U.S. university, you will need a F-1 student visa.
F-1 Student Visa General Information: The United States welcomesforeign students to American language schools, high schools, universities and other institutions of higher education. Thousands of learning institutions are approved by the USCIS to accept foreign students as full time students. It is possible to change schools and universities while being on an F-1 Visa without leaving the country

Student Visa Requirements
SA Students Visa Requirements:
Every year thousands of young people migrate to the US for the purpose of studying in some of the best-known international institutions. They go to the US not only to study regular academic courses or for conducting research, but also to participate in exchange visitor programs, or to study non-academic and vocational courses. There are various types of Student Visa USA which enable visitors to enter the US in either of the above-mentioned capacity. Such as: F Visa , J Visa , and M Visa. It is also important to know about the various Student Visa requirements For USA.
All of these types of Visas have more or less similar requirements
They are As: For F and M Visas :
Photocopies of first page, last page, and the address page of the passport
One photograph
Form DS-156 (non-immigrant visa application form)
Form DS-157 (supplemental non-immigrant visa application form)
Form DS-158
Valid HDFC Bank Visa Fee receipt
Demand draft of visa issuance fee
Copy of Form I-20. approved by the authority of the University applied to
Evidence of payment of SEVIS Fee receipt I-901, if applicable
Besides there are supporting documents including passport, interview appointment letter, evidence of financial resources, relevant test scores (like TOEFL and SAT, GRE, GMAT, and LSAT), original educational certificates, etc.
For J Visa :
Photocopies of first page, last page, and the address page of the passport
One photograph
Form DS-156 (non-immigrant visa application form)
Form DS-157 (supplemental non-immigrant visa application form)
Form DS-158
Valid HDFC Bank Visa Fee receipt
Demand draft of visa issuance fee
Copy of Form DS-2019
Evidence of payment of SEVIS Fee receipt I-901, if applicable
Besides there are supporting documents including passport, interview appointment letter, evidence of financial resources, letter from the funding organization in case the visitor is funded
Reference: http://www.mapsofworld.com/usa/visa/student-visa-requirements-for-usa.html

USA Visitor Visa:
Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for temporary stay, or an immigrant visa for permanent residence. The "visitor" visa is a nonimmigrant visa for persons desiring to enter the United States temporarily for business (B-1) or for pleasure or medical treatment (B-2), or combination of both (B-1/B-2) purposes.
Business Visitor Visas (B-1): As examples, if the purpose for your planned travel is to consult with business associates, travel for a educational, scientific, professional or business convention, or conference on specific dates, settle an estate, or negotiate a contract, then you would apply for avisitors visa.
Pleasure, Tourism, Medical Treatment - Visitor Visas (B-2): As examples, if the purpose of your planned travel is recreational in nature, including tourism, amusement, visits with friends or relatives, rest, medical treatment, and activities of a fraternal, social, or service nature, then you would apply for a vistors visa. The visa allows a foreign citizen, to travel to the United States port-of entry and request permission of the U.S. immigration inspector to enter the U.S.
Persons planning to travel to the U.S. for a different purpose such as students, temporary workers, crewmen, journalists, etc., must apply for a different visa in the appropriate category.
Representatives of the foreign press, radio, film, journalists or other information media, engaging in that vocation while in the U.S., require a nonimmigrant Media (I) visa and cannot travel to the U.S. using a visitor visa and cannot travel on the visa waiver program, seeking admission by the DHS immigration inspector, at the U.S. at the port of entry.