Left-handed opener Najmul Hossain Shanto scored an unbeaten half-century as Bangladesh stretched their lead to 179 runs on a rain-hit fourth day of the first Test against Pakistan on Monday. They were 152-3 in their second innings at the close on Sunday, Shanto having made an unbeaten 58 as he batted alongside Mushfiqur Rahim who was on 16 in the Sher-e-Bangla National Cricket Stadium in Dhaka. Bangladesh resumed on their overnight score 7-0 only to lost openers early, Mahmudul Hasan Joy trapped leg