It also advises British nationals to "exercise caution" since there is a "high threat from terrorism throughout India".
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The Home Office was offered the help of specialist social workers in August but rejected it, it has been claimed.
Sunday will be largely dry with some bright spells of sunshine after any mist or fog lifts and clears.
British Bankers' Association head Anthony Browne warned that some banks could be moving abroad within weeks due to Brexit uncertainty.