Dhaka, April 23 -- Bangladesh earned a slim 112-run lead in the second innings against Zimbabwe in the first Test match on the third day at the Sylhet International Cricket Stadium on Tuesday. Najmul Hossain Shanto played the key role to keep Bangladesh's hope alive scoring 60 (not out).Deciding to bat first, Bangladesh scored 191 in their first innings on the first day (Sunday).In reply, Zimbabwe piled up a satisfactory 273 in their first innings on the second day (Monday).The Tigers scored 194 for the loss of four wickets on the third day (Tuesday) before the bails were drawn due to bad light.Bangladesh resumed their second innings with the over-night score of 57 for the loss of one wicket.Mahmudul Hasan Joy and Mominul Haque resumed th...