Apply for the e-Visa early, and carry copies

Most visitors need an e-Visa, obtained through the official government portal (indianvisaonline.gov.in) a week or more before travel; third-party sites charge extra for the same form. Print the approval. Hotels register foreign guests, so keep your passport handy at check-in. Train tickets and SIM cards also need ID. A local SIM from Jio or Airtel is cheap and very useful; the official airport counters set it up while you wait.