Bipasha Basu, a leading Indian film actress has been signed on by Gitanjali Group as the new brand ambassador for its diamond jewellery retail brand Gili. The actress will be the new face for an undisclosed time frame.%% The Gili brand has been one of the very first diamond jewellery brands in India. It has grown over the years into 500 outlets across 30 cities in the country, besides being retailed through shop-in-shop formats. Gili has been noted for its unique retailing formats, by setting up its stores at sites like airports and petrol pumps in elite areas. Its exclusive showrooms are called 'Gili World'.