Discovery or MasterCard -- You decide
A company expanding its business by buying a competing company-Apex
The Credit card company VISA = Visa International Service Association.
No, you cannot work for a US company from India without a visa.
Yes, they can be. A company can be created to compete with another company. Or a current company can start competing with another company.
VISA is a great Credit and Debit Card Company. That is a way to use VISA in a sentence.
Merger
It is called a merger
Work visa can be got through employers only. Either company in US should recruit you and apply for your work visa or company in your home country also can send you to work in US on a work visa. Depending on the requirement and your eligibility you will be issued a visa with which you get authorization to work in US.
Visa
Visa card does not have a specific meaning. The Visa card is a credit card company. Visa cards are accepted at retailers all over the world.
A company has to sponsor the Mexican to get a work visa.
Work visa can be got through employers only. Either company in US should recruit you and apply for your work visa or company in your home country also can send you to work in US on a work visa. Depending on the requirement and your eligibility you will be issued a visa with which you get authorization to work in US.