Amar Singh is that big Zero, which has no value unless it is placed behind a figure. In isolation zero has no value or when it is placed in front of a figure. Mulayam Singh as a Samajwadi had (has) his own repute so Amitabh Bachhan & Jaya Bhaduri are international figure respected everywhere with their grand heritage. Figures should be careful for not getting them selves multiplied to Zero.
