Chasing a victory target of 174 runs set by Royal Challengers Bangalore, Chennai Super Kings were 59 for 1 in 7 overs at Maharashtra Cricket Association Stadium in Pune when reports last came in.
Earlier, put in to bat, Bangalore scored 173 runs for the loss of eight wickets in the stipulated 20 overs.
The match against Bangalore is special one for the Chennai Captain M.S. Dhoni, who is playing his 200th game.
In the 50th match tomorrow, Delhi Capitals will meet Sunrisers Hyderabad at Brabourne Stadium, Mumbai at 7.30 p.m.