Malayalam cinema legend Mammootty, who was honoured with the National Film Award for Best Actor for his work in 'Bramayugam' received a standing ovation at the recently concluded ceremony.Mumbai, Sep 22 (IANS) Malayalam cinema legend Mammootty, who was honoured with the National Film Award for Best Actor for his work in †̃Bramayugamâ€TM received a standing ovation at the recently concluded ceremony.The actor took to the stage to receive the honour from the President of India, Droupadi Murmu