Shivakant Shukla (54) and Nitin Bhille (60) were the only batsmen to make significant contributions as Railways crumbled in face of a disciplined collective effort by the home bowlers.
At stumps, wicketkeeper Mahesh Rawat (27) and Anureet Singh (4) were holding fort for the visiting side.
Railways were dealt an early blow when opener V Cheluvaraj became Pankaj's first victim after making just five runs.
Bhille was the first to go when Deepak Chahar had him caught by Robin Bist. Bhille struck seven fours during the course of his stay at the crease.
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Shukla departed in the next over, trapped LBW by Pankaj after a knock which was studded with eight hits to the fence.
None of the batsmen who came after them could emulate their patience with Amit Paunikar (26) and skipper Murali Kartik (30) being the only notable exceptions.
Brief Scores:
Railways 1st Innings: 223 for 7 in 83 overs (Shivakant Shukla 54, Nitin Bhille 60, Pankaj Singh 3/69).