Bollywood actress Aishwarya Rai Bachchan recently attended the launch of a new product of L'Oreal Paris in India's commercial capital Mumbai and the 40-year-old again proved to be a stunner with her post-baby slim figure.

The former Miss World wowed in a figure-hugging black lace dress at the launch of the cosmetic giant's new Kajal Magique (eyeliner). Aishwarya Rai intelligently matched her dress colour with the product, indeed, as she turned up in an all-black ensemble, head to toe, at the event.

Bachchan, who is dubbed as the most beautiful woman in the world, wore a stylish black blazer over her strapless gown but later took it off for the final launch only to reveal her hourglass figure.

Aishwarya Rai, who had been criticised for not losing her pregnancy and post-baby weight fast after she gave birth to daughter Aradhya in November 2011, shut the mouths of the fashion police at the L'Oreal launch.

Her floor-length gown featuring a sheer bottom was clinched at the waist by a built-in wide lace belt of the same colour that highlighted her slender figure.

Aishwarya Rai put dark eyeliner and let her brunette locks loose. She looked elegant with a wristwatch as the only accessory.

The actress, who is married to Abhishek Bachchan, also a star, has been the beauty ambassador of L'Oreal Paris for long. She also features in the French beauty company's advertisement of the new product.

Despite her endorsement engagements, Aishwarya Rai has been a doting mother ever since her daughter was born. She has also not signed any films since then, though she has been regularly attending the Cannes Film Festival and appearing in jewellery advertisements.

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Aishwarya Rai features in the ad of L\'Oreal Paris new Kajal Magique. L\'ORÉAL PARIS