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"Mission India's non-immigrant visa workload is one of the largest in the world, processing over a million visas a year," the statement said.
"In the last five years, the demand for visas to travel to the United States has increased by over 60 per cent."
According to the statement, the Embassy in New Delhi and the four Consulates across India "are constantly working to improve service and meet demand, but applicants should be aware that the summer is a peak travel season and there will be delays in getting visa appointments".
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"Someone can either apply and have an interview at a US Embassy or Consulate, or if they have had a visa before and meet certain criteria, they may qualify to have their visa renewed," the statement said.
"Anyone claiming they can guarantee a visa in exchange for a fee is attempting to defraud you. Applicants should be smart and apply the right way," it added.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)