The State Department pointed to recent government warnings and media reports of attacks being planned in the South Asian country.[break]
US citizens should be aware of the "continued possibility of terrorist attacks throughout India," it said in a statement.
It urged Americans to "pay particular attention to their personal security during the Indian holiday season, which includes Hindu, Islamic and other religious and secular holidays between October and January."
"US citizens traveling or residing in India are always urged to maintain a heightened situational awareness and a low profile, monitor local news reports, consider the level of security present when visiting public places, and take appropriate steps to bolster their personal security," the State Department added.
It noted that markets, hotels and public transport were potential targets.
India has been hit by a series of bomb attacks in recent years, many of which remain unsolved.
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