Mr Cameron will be accompanied by some of the most senior members of his cabinet, and brings with him one of the largest UK trade delegations ever to visit India.

There is widespread speculation that the UK premier hopes to forge a "special relationship" with the country.

India's growing economy and key role in the G20 means that it is emerging as an important international player on the global stage.

Are you in India? Do you welcome David Cameron's visit? How important are relations between Britain and India? What do you think each country has to offer the other? What outcome do you expect from the visit?

In a speech at the Turkish parliament, Mr Cameron said he wanted to "pave the road" for Turkey to join the EU, saying the country was "vital for our economy, vital for our security and vital for our diplomacy".

He went on to say Turkey could become a "great European power", helping build links with the Middle East. Turkey opened accession negotiations with the EU in 2005 but is considered very unlikely to join in the next 10 years, partly because of opposition from countries such as France.

Is the prime minister right to advocate Turkey's membership to the EU? Will Turkey's inclusion help build links with the Middle East? Has the EU grown too large? Is opposition to Turkey's membership driven by protectionism and nationalism?

This week, BBC Radio 5 live Drive is looking for big ideas to drive down the deficit. Today the focus is on foreign and defence spending.

If you were chancellor what changes would you make? Should we scrap the RAF? Can we afford to give aid packages to poorer nations? Does it pay to be in the European Union? What ideas do you have?

You can listen to BBC Radio 5 live Drive from 4 pm today.

Read the debate on day 1 about home savings, including on health, education and local services.

Lord Coe and London Mayor Boris Johnson launched their appeals on Tuesday for thousands of Olympic volunteers to get involved in the London 2012 Olympics.

Events have been taking place at the Olympic site. Gold medallist Chris Hoy was the first to cycle round the new velodrome and former Olympic gold medallist Michael Johnson ran a race on a special track against a group of young children.

What do you think of the progress of the London Olympics? Do you live in the area? What impact has the project had already? Are the Olympics a good use of taxpayers' money?

Check out our new Olympics website.

Bob Dudley, currently in charge of BP's clean-up operation, will replace Tony Hayward as chief executive in October. Mr Dudley described the oil spill as a terrible tragedy from which the company and the industry would learn a lot.

Earlier, BP reported a record $17bn (£11bn) loss, having set aside $32bn to cover the costs of the spill.

What does the future hold for BP? What impact will Tony Hayward's departure have on the company? What should the next chief executive do to improve BP's image?

The coalition government originally planned to grant pre and post-charge anonymity but has now dropped the plan altogether. Labour and women Tory MPs said it could send a negative signal about women who accuse men of rape.

The government will, however, put pressure on media outlets through the Press Complaints Commission not to name suspects.

Should men accused of rape be anonymous? Would anonymity send a negative signal about women who accuse men of rape? Is the coalition government right to drop the plan?

This debate has now closed. Thank you for your comments.

Three major news publications which have been shown the documents say they include unreported killings of Afghan civilians. They also reveal Nato concerns that neighbouring Pakistan and Iran are helping Taliban insurgents in Afghanistan.

The White House has said that such classified information could put the lives of Americans at risk, and threaten national security, while the Pakistani ambassador in Washington said the "unprocessed" reports did "not reflect the current onground realities".

Do the leaks help the understanding of the Afghanistan war? Do they affect the security of the troops on the ground? Do you trust leaked and unprocessed information?

The proposals include a new National Crime Agency, which will focus on cross-border organised crime and drug trafficking and will replace the Serious Organised Crime Agency, which was set up by Labour four years ago.

At a local level, police and crime commissioners, who will have powers to set police force budgets, will be elected by the people in 2012. This measure has already met resistance from some senior police officers.

Do you agree with the new measures? Will elected commissioners work? What would you do to make the police forces more efficient?

Thank you for your comments. This debate is now closed.

This week, BBC Radio 5 live Drive is looking for your big ideas to drive down the deficit. Today the focus is on home savings, including on health, education and local services.

If you were chancellor what changes would you make? Should people have to pay to visit their GPs, or face a fine if they miss an appointment? Could standards be maintained if class sizes were doubled? Would we manage if our bins were only collected once a month? What ideas do you have?

You can listen to BBC Radio 5 live Drive from 4 pm today.

The ex-director general of the CBI says degrees do have value but that they are not the best option for all students.
UK universities are attracting record applications but firms often complain graduates do not have the right skills.

Lord Jones said courses need to deal with "the challenges of today".

Are you employer? Do you think graduates have the right skills? Are you a graduate? Has your degree prepared you for the world of work? Should universities offer more vocational courses?

This debate has now been closed. Thank you for your comments.

The navy and air force manoeuvres involve 20 ships, 200 planes and 8,000 US and South Korean personnel.

Washington and Seoul say the war games are to deter a North Korean aggression. But North Korea called the exercises reckless and threatened to use nuclear weapons in response. China has also criticised the war games and warned against any action which might "exacerbate regional tensions".

Tensions between the two Koreas have been high since the sinking of a South Korean warship in March. An international investigation said the ship was sunk by a North Korean torpedo, a claim strongly denied by North Korea.

Are the exercises a good idea? Is China right to criticise the plans? What should the international community do? How should the US and South Korea react to the North Korean threat?

The UK spent the 1920s attempting to recover from WWI and then endured the Great Depression of the following decade. From that period onwards health inequalities started narrowing until the 1970s.

Since then, the gap has continued to rise steadily. It also means that a pledge by the previous Labour government to reduce the inequality gap between 1997 and 2010 is almost certain to be missed.

Do you agree with the findings of the research? What can be done to tackle health inequalities? Is there anything that we can learn from the Great Depression?

Read more of your comments.

Teacher embarrassment and lack of knowledge were often to blame, Ofsted said. The report went on to say that in many secondary schools, pupils were taught about the biology of sex but not relationships

The government says all young people should have high-quality teaching in this area and it will take Ofsted's findings into consideration in its review of the curriculum.

At what age should young people start to receive sex education? Should schools be teaching sex education or should this be the parents' responsibility?

Do the over-40s get enough sex education?

Libyan Abdelbaset Ali al-Megrahi was convicted of bombing a US-bound jumbo jet over Lockerbie in 1988. He was released from a Scottish prison last August after doctors said he only had three months to live.

US senators want to investigate suspicions that BP may have pressed for Megrahi's release in order to help secure an offshore deal with Libya.

The Scottish government has declined an invitation to attend the hearing and oil giant BP is considering its course of action after also receiving an invitation to give evidence to the committee.

Should the US Senate look into the release of Megrahi? When is it acceptable for firms to lobby governments? Is the Scottish government solely accountable for the release? Should UK politicians attend the hearing?

This debate has now been closed. Thank you for your comments.

The panel includes the Immigration Minister Damian Green, the shadow transport secretary Sadiq Khan, UKIP's Nigel Farage, the RMT leader Bob Crow and the economist Ruth Lea.

The debate is now closed. Thank you for your comments.