Three 1993 Mumbai blasts convicts' petitions for extension of time to surrender on the ground that their clemency pleas are pending before President Pranab Mukherjee, were on Tuesday (April 16) dismissed by the Supreme Court. Zaibunnisa Anwar Kazi (70), Issaq Mohd Hajwane (76) and Shariff Abdul Gafoor Parker (88) alias Dadabhai had moved the apex court seeking more time to surrender in order to undergo sentences awarded to them.