Put into bat, Delhi openers, Dhruv Shorey (42) and Gautam Gambhir (35 not out) managed a 74-run stand to give the hosts a firm but slow start.
The Delhi innings has seen a run-rate of 2.05 so far with some disciplined bowling from the Odisha bowlers.
Pace spearhead Basant Mohanty cleaned up Shorey in the 40th over, but new man Nitish Rana (15 not out) and bad light made sure that the visitors have no more casualties.
Delhi, who conceded three points to Bengal in their previous encounter at Feroz Shah Kotla, will be looking for their third outright win in their fifth game this season, while the Biplab Samantaray-led side, which is placed sixth in the group table, is looking for a better showing.
Brief Scores:
Delhi 99/1 in 48.2 overs (Dhriv Shorey 42, Gautam Gambhir 35 not out; Basant Mohanty 1-31).