Sources in the Bharatiya Janata Party have played down talk that Shivraj Singh Chouhan - its longest-serving chief minister - might not feature in its plans for the election due in Madhya Pradesh this year. Top BJP sources told NDTV this morning that reports he is to be denied a ticket are wrong, but the caveat - that "any big leader can become chief minister post-election" - is unlikely to end speculation over Mr Chouhan's immediate political future.