Only 50.2 overs of play was possible on the day with Uttar Pradesh's beefy left-hander Mukul Dagar scoring 45 while the domestic heavyweights like Mohammed Kaif (6) and Robin Bist (18) failed to make any substancial contribution.
Mithun was the pick of the bowlers with figures of three for 24 in 10 overs.
Opting to bat, Central Zone suffered a setback when veteran right-handed opener Vineet Saxena (0) was bowled by inswinger from Mithun.
India discard Kaif (6) also received a seaming delivery and played to a wrong line to get bowled.
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At 13 for two, Dagar and Bist came together adding 56 runs for the third wicket. The duo batted for nearly 23 overs before Bist padded an arm ball from Pragyan Ojha to be adjudged plumb in-front.
Dagar, who showed a lot of patience, finally edged an angling delivery from Mithun to wicketkeeper CM Gautham behind the stumps. Dagar faced 105 balls and hit six boundaries in his innings of 45.
Brief Scores: Central Zone (1st Innings) 123/5 in 50.2 overs (Mukul Dagar 45, Naman Ojha 23, Abhimanyu Mithun 3/24) vs South Zone.