One of India's top Muslim clerics has been asked by the Delhi High Court to explain his decision to pick his son as his successor. Syed Ahmed Bukhari, the Shahi Imam of India's largest mosque, the Jama Masjid, is meant to anoint his 19-year-old son as Vice-Imam on Saturday. The court said his move "has no legal sanctity" but did not cancel the ceremony; it has asked Mr Bukhari to explain his move by January 28.