Citing threats to his life from fundamentalists, Sanjay Dutt has sought permission from a TADA court to surrender in jail even as the Supreme Court refused to grant the Bollywood star more time beyond May 16 to give himself up. 53-year-old Dutt filed an application before special TADA Judge G A Sanap in Mumbai seeking permission to surrender before the Yerwada jail in Pune in the 1993 Mumbai blasts case instead of giving himself up before the special court in south Mumbai.