When you receive your e-Visa, check the details carefully for any mistakes. You need to check the following.
The e-Visa is emailed to you within a few days of you applying online. You need to print the e-Visa off and take it to India with you. When you arrive in India, you will get a visa stamp in your passport.
Citizens of 160 countries, including the United States, can apply for an e-Visa. The e-Visa is for people visiting India for business, treatment, recreation, sightseeing, visiting friends or relatives and so on. People of Pakistani origin cannot get an e-Visa.
No, you cannot apply for a visa at the airport. You need to have an e-Visa before travelling to India. Then you can get the visa stamp in your passport when you arrive.
E-Visa is applied and received online. You don’t need to submit passport or any documents. On the other hand, you need to contact to Embassy of India in your country and submit all required documents to get India Visa. You also have to wait about weeks for having traditional Visa instead of few days as e-Visa.
All visitors to India must have a valid visa. India has recently allowed citizens of more than 160 countries to get an e-Visa which they can apply for online.