This is Delhi's third win in four matches and the hosts are favourites to seal one of the two quarter-final spots up for grabs from this group.
Currently, Delhi are second behind Maharashtra in the group C table, with 12 points from 4 games. Maharahstra also have 12 points but have played a match less.
The bowlers led by left-arm pacer Pawan Suyal (3/14 in 10 overs) and Navdeep Saini (2/28 in 9 overs) skittled out Tripura for 100 in 39.3 overs with former UP batsman Parvinder Singh top-scoring with 20. Left-arm spinners Manan Sharma (2/24) and Pawan Negi (2/2) also did their bit.
Brief Scores: Tripura 100 in 39.3 overs (Parvinder Singh 20, Pawan Suyal 3/14, Pawan Negi 2/2, Navdeep Saini 2/28)
Delhi 101/2 (Nitish Rana 67 no). Delhi beat Tripura by 9 wkts. Points: Delhi 4; Tripura 0.