Mumbai police begins preventive detention ahead of Yakub Memon's hanging in Nagpur. President Pranab Mukherjee rejects Yakub's mercy plea. Yakub Memon, convicted as "a driving spirit" for the 1993 blasts in Mumbai should hang tomorrow as scheduled, the government is likely to advise President Pranab Mukherjee. The President is likely, said sources, to reject tonight a new mercy plea filed by Memon, which means he will be executed in Nagpur early tomorrow morning.