No 10 has apologised after meat and alcohol were served at a Downing Street event to celebrate the festival of Diwali, held last month.
In a letter to Prime Minister Sir Keir Starmer, Conservative MP Shivani Raja said the decision was "not in keeping with the customs of many Hindus" and displayed a "disappointing lack of knowledge of the customs and traditions that many British citizens hold dear".
In a statement, first reported by Politico, a Downing Street spokesman said "a mistake was made in the organisation of the event".
"We understand the strength of feeling on this issue and so would apologise to the community and assure them it will not happen again," he added.