Mulayam Singh Yadav today openly criticized his son Akhilesh Yadav's decision to tie up with rival Mayawati's Bahujan Samaj Party (BSP). A week ago, the Samajwadi patriarch had baffled his party and others in the opposition by telling Prime Minister Narendra Modi in parliament that he hoped he would return to power. His latest comments bring more embarrassment for Akhilesh Yadav.