Mumbai: A spokesman at the Maharashtra state home ministry has said a Briton, an Australian and a Japanese man were killed by gunmen who stormed a number of targets.
The gunmen had reportedly been seeking out UK and US passport holders.
The Foreign and Commonwealth Office has confirmed that a British national died in the Mumbai attacks.
A spokesman said: "We are in touch with the family".
A team of UK police and security officials has flown to Mumbai to help British High Commission staff and the Indian officials if required, the FCO added.
More than 100 people were killed in the series of terrorist attacks in Mumbai.
Sir Richard Stagg, the British High Commissioner in India, said the situation was still "pretty confused".
He told Sky News he had personally seen three or four injured Britons in hospital but "the number must be significantly more in total". At least seven Britons are known to have been injured.
Sir Richard said he understood there was no longer a hostage crisis at the Taj Mahal Palace hotel although a situation was continuing at the Oberoi Trident hotel. The hotels were among at least seven locations where Westerners are believed to have been targeted.
Sir Richard said a reception centre was set up for Britons who had been staying at the hotels and about 30 people had arrived in need of food, drink and accommodation. The centre was being manned by teams from the Deputy High Commission and the British Council and a specialist trauma team was arriving from London.
He added: "It's a pretty confused situation still. The crisis at the Oberoi hotel is continuing and I think the Indians have been focusing very much on bringing the terrorist incident to a conclusion and on getting the injured people to hospitals as quickly as possible. Those that I saw appeared to be being looked after well."
