Samantha, 42, chose a russet-coloured sari edged in gold for a visit to the Swaminarayan Mandir, the largest traditional Hindu temple outside India, at Neasden in north-west London.
Diwali, known as the festival of lights, is a five day celebration undertaken by millions of Hindus, Jains and Sikhs around the world.
For Hindus, the five-year festival of Diwali is one of the most important events in the year. Fireworks and lamps are used to create a riot of colour to celebrate the victory of good over evil, sweets are traded and new clothes bought. Lamps are lit and kept on during the night and families come together to carry out traditional tasks such as cleaning the house to honour the goddess Lakshmi.
While Samantha Cameron looked the part in her dramatic sari, David Cameron chose not to dress quite so spectacularly as his wife though, wearing his trusty navy suit.
''WATANZANIA WENZANGU MNAONA HII''
TANZANIA (YOTE)NA POPOTE PALE MLIPO ,MNAONA MAMBO YA WENZETU EE''JAMANI TUIGENI MAMBO KAMA HAYA'MIMI SANA SANA HUWA NAWARUSHIENI MAMBO YA MAENDELEO NA USHIRIKIANO WA WENZETU ILI TUIGENI KWA PAMOJA''KUIGA NI BURE NA MIMI NIMESHAWARAHISISHIENI KUWALETEENI HADI MLANGONI ''KAZI KWENU''
FLORA LYIMO FASHION POLICE:SAY>NIMEPENDA SANA HII''YANI FANYA YAKO UKIWA KWAKO 'UKIENDA KWA WATU FANYA WAPENDAVYO ''HABARI NDIYO HIYOO''SHE LOOK PRETTY FOR SURE"
TUMECHOTA NA KUMIMINA KUTOKA DM''