A musician & friend of mine goes to India for almost three months, it's a German.
India requires a business visa for this.
Looking for a site to apply for this he sadly found a scammer site first:
https://www.indiasevisa.org/ and applied (DO NOT APPLY THERE!). The site looked legit and he was charged 170€. No visa or communication ever arrived. Sadly when you look at the details they explicitly say, that they are not affiliated with the Indian government directly (Screenshot attached below). Site located in New Zealand, by the way, looking professional.
Here's where you really need to go to:
https://indianvisaonline.gov.in/Beware of scammers!!!
#
ScammerAlert #
VisaIndia #
India #
VisitIndiaScammers:

Real Indian government site:

THis information was passed on by my friend, please correct, if necessary.