Half centuries from opener Aditya Shrivastava (65), Naman Ojha (64) and no. 6 Harpreet Singh Bhatia (51 not out) and an unconquered 42 not out from experienced campaigner and skipper Devendra Bundela pulled the MP innings around from 39 for 2.
A century partnership of 102 for the third wicket between Shrivastava and Ojha steadied the innings and then an unbeaten stand of 92 between Bundela and Bhatia consolidated MP's position after they were asked to bat first by Bengal skipper Manoj Tiwary on a track with a tinge of green on it.
Saxena, who came into the quarter finals after scoring 530 runs in the league stage of the competition, was caught at point cutting the first ball of Veerpratap Singh's second over.
Then Shrivastava and Patidar exercised caution in lively conditions to crawl their way to 39 in the 21st over when the one-down batsman chopped Bengal's first change seam bowler Sayan Mondal on to his stumps after making 17 off 56 balls.
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Their partnership of 102 for the third wicket in 164 balls was broken by left arm spinner Pragyan Ojha who had Shrivastava, who struck 8 fours in his 142-ball knock, caught flicking at short mid wicket by a diving Shreevats Goswami.
Ojha, who batted confidently and hit 10 fours in his 119-ball innings, departed 10 overs later by stretching out defensively to Veerpratap and edging the medium pacer to Tiwary in the slip region, to leave MP at a tricky 162 for 4.
It was no surprise when Tiwary summoned the second new ball as soon as it was due when MP were 235 for 4. But the move did not pay dividends with Bundela and Bhatia batting confidently against the trio of Bengal medium pacers.
Veerpratap was the most successful of the Bengal bowling attack to return figures of 2 for 5 while Ojha and Mandal secured a wicket each.
Brief scores: Madhya Pradesh 254 for 4 (Aditya Shrivastava 65, Naman Ojha 64, Devendra Bundela not out 42, Harpreet Singh Bhatia 51 not out; Veerpratap Singh 2 for 55) v Bengal.