McCullum injected an aggressive approach to the Test squad after taking over in 2022, with Matthew Mott continuing to coach England in the shorter formats.
However, the Australian stepped down last year after England failed to defend their T20 and 50-overs World Cup titles in the space of seven months across 2023-24, and McCullum was tasked with reviving their limited-overs fortunes.
"Obviously, we want to win every game we play, to try and be successful, and that's ultimately the mission for us," McCullum said ahead of his first white-ball series in charge, which includes five T20 Internationals and three one-dayers.
"I'm desperate for us to play a really watchable brand of cricket. With the talent we have, there's no reason why we can't.
"We've got a batting line-up which is as powerful as any batting line-up in the world. We've got gun spinners, very good fielders and guys who bowl absolute rockets with the ball, so you've got options there to be able to entertain and give yourself the greatest chance of success."
The former New Zealand captain is convinced Jos Buttler's "best years are yet to come" and said the England captain would not be keeping wickets, with Phil Salt likely to stand behind the stumps in the T20 matches.
World champions India will be keen to see how seamer Mohammed Shami fares in his return to international cricket after more then a year out nursing an ankle injury that required surgery.
Captained by Suryakumar Yadav, the squad are without pace spearhead Jasprit Bumrah, who is recovering from back spasms.
The seamer is expected to play at some stage of the three-match ODI series between the sides that follows the T20 matches and will lead India's attack in the Champions Trophy beginning next month.
