Along with technology development, traveling to a distant country nowadays does not take months or weeks on streets but just a few hours with visa process shortened into a few minutes. If you are a US. citizen, here are some useful information about Indian eVisa for you.
Indian eVisa may be available for double, triple or multiple entries, based on the specific type of eVisa. Check Indian eVisa for more details.
There are currently many points of entry available for Indian eVisa holders: