The star performers for Kolkata Tigers were Avilin Ghosh (42), Sandeep Tomar (28) and Sujit Yadav (3/17).
Saurabh Srivastava was named the man of the match for his superb all-round performance.
Batting first, Lux Shyam Kolkata Tigers posted 125 in 20 overs.
In reply, Adamas Howrah Warriors were struggling at 54/5 in 10.3 overs.
Earlier, winning the toss and electing to bat first, Kolkata Tigers dealt an early blow with the dismissal of their captain Abhishek Porel for a golden duck.
However, Avilin Ghosh (42), Sandeep Tomar (28), helped the team recover after a slow start.
Saurabh Srivastava (21) played a handy knock in the end to take team to a the highest total till date in this tournament.
For Howrah Warriors, Sujit Yadav was the pick of the bowlers bagging 3 for 17.
Chasing the target, Howrah Warriors were in a spot of bother after being reduced to 54/5 inside 10.3 overs when rain spoiled the match.
However, Anustup Majumdar (13) played a fighting knock.
As wickets kept tumbling at the other end, Saurabh Srivastava (3 off 9) gave a big momentum to Kolkata Tigers.