In other political news, European Council President Donald Tusk has said it will be "very, very tough" to reach agreement on the UK's EU renegotiation objectives. He also said it was not guaranteed a deal could be reached by December, when a key summit of EU leaders will be held.

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To recap, David Cameron has said he and India's PM Narendra Modi have "big ambitions" for UK-Indian relations.

Speaking at a joint press conference at the start of Mr Modi's visit to the UK, Mr Cameron announced deals between UK and Indian firms worth more than £9bn.

The leaders said they would collaborate on issues including finance, defence, nuclear power and climate change.

Mr Modi, who is visiting for three days, said India's relationship with the UK was of "immense importance".

Full story here.

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More than 200 writers including Salman Rushdie, Val McDermid and Ian McEwan have called on David Cameron to address India's "rising climate of fear" with its Prime Minister Narendra Modi, during his three-day visit to the UK.

An open letter, external has been published by Pen International as Mr Modi flies into the UK for a three-day visit.

The writers have expressed concern over the "growing intolerance and violence towards critical voices" in India.

They want to urge Mr Modi to "safeguard freedom of expression".

More here.

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Indian Prime Minister Narendra Modi says his state visit to the UK will give "great impetus" to the ties between the two countries.

His trip will last three days, and his planned engagements include meeting the Queen at Buckingham Palace and addressing thousands at Wembley Stadium.

Here's a look at his visit so far, in pictures.

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For David Cameron, Indian Prime Minister Narendra Modi's visit to the UK is personal.

Leading British officials involved with the visit underline that Mr Modi's three days in the UK - 12-14 November - is all about convincing the Indian leader that Britain is a friend like none other.

Equally, it is about establishing a deeper connection between the two prime ministers, one that they do not share at present.

Apart from the many memorandums that will be signed and business deals worth $15bn (£9.9bn) agreed, the idea is to provide Mr Cameron and Mr Modi space to relate better with each other.

Read more.

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As we've been reporting, Indian Prime Minister Narendra Modi is in the UK on three-day official visit. Rob Lynes, director of the British Council in India, looks at the links between the two countries.

Mr Modi says this is "a huge moment for our two great nations" and says the UK and India should "seize the opportunities" and "remove obstacles" to cooperation. Doing so will ensure the relationship "counts as one of the leading global partnerships", he adds. He's greeted with a standing ovation as he concludes his remarks.

PM Modi says the progress of India "is the destiny of one sixth of humanity". He says it is also "natural and inevitable that our economic relations will grow by leaps and bounds".

But, he says, the relationship cannot be measured only in terms of mutual prosperity. In "uncertain" times, "we must help steer a steady course through this world in the direction that mirrors the ideals we share."

Prime Minister Modi runs through the ties between the UK and India, saying the two countries are cooperating on business and security. He adds:

On the way to the event, PM Modi and PM Cameron visited Gandhi's statue outside Parliament. Mr Modi says on seeing it he was reminded of a question he was asked on a tour abroad: how is it that the statue is there? His answer?

He says he stands in Parliament today, not as a visiting head of government but as "a representative of a fellow institution and shared traditions".

Mr Modi says he knows that the Parliament is not in session (it's recess at the moment): "The prime minister looks relaxed and relieved," he says, to laughs. He also sends his good wishes to Labour, and to all MPs elected in 2015.

Speaking in English, Prime Minister Modi says he's "delighted" to be in London. Even in this globalised work, London is still the standard of our times". He says he's "truly honoured" to speak in the British Parliament.

"India is all of our futures," says John Bercow. "To prepare for such a prospect is a daunting challenge to which Prime Minister Modi has devoted great thought and attention", he adds. "It is my pleasure to invite you to speak to us," he says and shakes Mr Modi's hand.

In a short speech, Commons Speaker John Bercow welcomes Indian Prime Minister Modi to Parliament. "Today is special for two reasons," he says.

"First, this is a first: the first occasion upon which we will hear a speech by a serving Indian prime minister in our Parliament. Secondly, it's fitting that it takes place during Diwali," he says.