Varanasi, Sep 10 (ANI): Blame game began on Wednesday as musical instrument, 'shehnai', of shehnai maestro and receipt of country's highest civilian award 'Bharat Ratna', Ustad Bismillah Khan, went missing. According to the sons of the shehani maestro, the musical instrument went missing in 2009 and so far no report has been registered with the police. There has been a family dispute regarding Khan's property among his sons and nobody is aware about the things which the Ustad used to posses. Middle son of Khan, Kazim Hussain, said the shehnai was given to Naiyar Hussain, one of the sons of Khan.