The late spark was provided by Bravo (23 off 8 balls) as CSK recovered from a disastrous start to put up a fighting total.
Chasing 157 on a pitch where the ball often stopped on the batsmen, MI too were off to a poor start as they slipped to 37 for three in the sixth over at the Dubai International Cricket Stadium.
Both Quinton de Kock (17) and debutant Anmolpreet Singh (16) got out after getting starts, the bowler being pacer Deepak Chahar on both occasions.
Suryakumar Yadav and Ishan Kishan too made their way back to the dugout in quick succession to leave MI in a spot of bother at 58 for four in the 10th over.
Saurabh Tiwary (50 not out) and stand-in skipper Kieron Pollard tried to forge a partnership before Josh Hazlewood had the big-hitting all-rounder from Trinidad trapped in front of the wicket.
CSK brightened their prospects further when Krunal Pandya was run out by the Dwayne Bravo-MS Dhoni combination.
Tiwary and Adam Milne tried but could not succeed, with the latter getting out to the experienced Bravo in the second ball of the 20th over.
Bravo picked up 3/25 while Chahar had 2/19 as MI ended at 136 for eight.
Earlier, the 24-year-old Gaikwad added 81 runs for the fifth wicket with Ravindra Jadeja (26) to steady the ship after they lost skipper Mahendra Singh Dhoni in the sixth over with the score reading 24 for 4.
Gaikwad smashed nine fours and three sixes, while Bravo hit three maximums as CSK scored 112 runs in the back 10.
CSK lost four wickets in the power play, including the wickets of skipper Dhoni and the team's seasoned run-getter Suresh Raina, as three top-order batsmen failed to open their account.
The start was inauspicious for CSK as Trent Boult dismissed Faf du Plessis in the fifth ball of the very first over when the New Zealand pace spearhead had the veteran South African caught by the backward point fielder Adam Milne, who was standing very fine, after the batsman had shaped himself up to play the cut shot.
One for one became two for two in the next over as Milne got Moeen Ali who slapped a slightly short ball straight to Saurabh Tiwary at cover.
What didn't help Moeen was that the ball seemed to stop as the England all-rounder went for his shot.
More trouble was in store for CSK as the three-time winners lost the big wicket of Raina in the third over when the experienced left-handed batsman, who has helped the team win so many matches in the past, got out to an irresponsible shot when he miscued one while trying to attack the Kiwi seamer.
Meanwhile, Ambati Rayudu retired hurt after taking a blow on his body to make matter worse for the Super Kings.
If that was not enough, holders Mumbai Indians piled more misery on CSK by sending the veteran Dhoni back to the hut for a poor score.
The World Cup-winning Indian captain timed his shot well but, to his shock, Boult completed a well-judged catch at deep square leg, capping a forgettable powerplay for the unit from Chennai.
After that, Gaikwad and Jadeja put together invaluable runs by mixing caution with aggression to give their team a total to defend against a side that is missing two of their big players in regular skipper Rohit Sharma and all-rounder Hardik Pandya, whose seam-up bowling was missed when the Chennai duo was rebuilding their innings.
Chennai Super Kings: 156 for 6 in 20 overs (R Gaikwad 88 not out, R Jadeja 26, D Bravo 23; A Milne 2/21, J Bumrah 2/33, T Boult 2/35).
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Washington (AP): Three American service members have been killed and five others seriously wounded during the US attacks on Iran, the military said Sunday, marking the first American casualties in a major offensive that has sparked retaliation from the Islamic Republic.
US Central Command, which oversees the Middle East, announced the deaths in a post on X but did not say when and where they occurred. The statement said “several others sustained minor shrapnel injuries and concussions” and were going to return to duty.
Central Command described the situation “as fluid” and said it would withhold the identities of the service members who were killed for 24 hours after their families were notified.
The US military also denied Iranian claims that the USS Abraham Lincoln aircraft carrier was struck with ballistic missiles, saying on X that the “missiles launched didn't even come close.”
President Donald Trump had warned that American troops could be killed or injured in the operation.
“The lives of courageous American heroes may be lost, and we may have casualties,” the Republican president said in a video address released early Saturday. “That often happens in war. But we're doing this not for now. We're doing this for the future.”
Following the US-Israeli strikes that killed Iran's supreme leader, Ayatollah Ali Khamenei, and other leaders, Iran's counterattacks have struck US bases in Bahrain and the United Arab Emirates.
Iran's paramilitary Revolutionary Guard has threatened to launch its “most intense offensive operation” ever targeting Israeli and American military installations.
Before the strikes, Trump had built up the largest US military presence in the Middle East in decades. The arrival of the Lincoln and three accompanying guided-missile destroyers at the end of January bolstered the number of warships in the region.
The world's largest aircraft carrier, the USS Gerald R. Ford, and four accompanying destroyers later were dispatched from the Caribbean Sea to head to the Middle East.
The Ford was part of the US raid in Venezuela that captured leader Nicolás Maduro, who was brought to New York to face drug trafficking charges. The operation in January claimed no American lives but left seven US troops with gunshot wounds and shrapnel-related injuries.
One of those injured received the Medal of Honor during Trump's State of the Union address last week. Trump said Army Chief Warrant Officer 5 Eric Slover piloted the lead CH-47 Chinook helicopter that descended on the “heavily protected military fortress” where Maduro was staying.
Trump has launched several military operations during his second term, including strikes on members of the Islamic State group in Syria in retaliation for an ambush attack that killed two US troops and an American civilian interpreter in December.
The US military has also struck IS forces in Nigeria, after Trump accused the West African country's government of failing to rein in the targeting of Christians.
