India, Feb. 1 -- Left-arm spin bowling all-rounder Shahbaz Ahmed produced the best match figures of his first-class career to power his adopted home state Bengal to a commanding 188-run victory over Haryana inside three days and storm into the Ranji Trophy quarterfinals unbeaten on Saturday.

On a difficult surface that assisted the bowlers throughout, Shahbaz returned extellents figures of 6/38 after claiming 5/42 in the first innings, finishing with a match haul of 11/80 as Haryana, chasing a challenging 294, folded for 105 in 26.1 overs in a must-win game.

The Mewat-born spinner ripped through the top order, accounting for the first six wickets to virtually close the contest. Table-toppers Bengal, who had already secured their quarter...