A hunt is under way to find the four thieves before the jewels - which once belonged to French royals - vanish for good.
The BBC's Hugh Schofield is outside the museum in Paris where the "extraordinary, daring and brazen" robbery took place.
The lamps were lit in the northern Indian temple town of Ayodhya, Uttar Pradesh, on Sunday ahead of Diwali, the Hindu festival of lights.
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