India visa services provide an online visa application process and eliminate the physical appearance of the Indian embassy. You can pay the visa fee online as per your visa requirements. After successful payment, individuals obtain a receipt containing a reference number necessary for scheduling the visa interview. After successful payment, applicants must schedule an interview appointment at the nearest US embassy or consulate in India. You can book an appointment through the CEAC website using the unique barcode number from the DS-160 confirmation page and the payment receipt number. Availability for interviews can be based on location and demand.