Cummins leaves CSK in further strife with the wicket of his opposite number Gaikwad.
The CSK skipper pulls the short ball but straight into the hands of Eshan Malinga at deep square leg.
A poor outing with the bat for Gaikwad, who walks back after a disappointing innings of 15 from 21 balls without a single boundary.
CSK struggling on 100/4 in 11.3 overs with Cummins taking 3/16 in 2.4 overs.
Shivam Dube keeps out the last three balls as Cummins bowls an excellent over, giving away just a single in the 12th over.