Indian officials say at least twelve people have now died in Monday's car explosion in Delhi. Reports in the Indian media say that investigators suspect a Delhi-based Kashmiri doctor was in the driver's seat. There's also been an explosion near a crowded courthouse in neighbouring Pakistan today.

Also in the programme: voting is underway in Iraq to choose a new parliament as both Iran and the US vie for influence; the new research that suggests that speaking more than one language could delay the ageing process; and we speak to this year's Booker Prize winner.

(Picture: Security personnel and members of the forensic team work at the site of an explosion near the historic Red Fort in India. Credit: REUTERS/Adnan Abid)