Cricket 24

Credit to Poru99 from Playstation/youtuber for this tip.

Trying this on a rookie career is going to be a nightmare. Best and fast way is to play the career as existing player. Naturally this going to be quicker with an Indian player as its their home tournament. Now before we start the career, its recommended to go to the cricket academy and search community. Search for the team with team name as India and gamertag starts with as "wasteyouryouth". From the search results download the team that has 84 overall rating. Select replace all with existing when prompted. This upgrades the existing non licensed players with real players from India with a good overall rating making this much easier.

Now go to career and start as the existing player. Choose Team as India and player as either Rohit Sharma, Sanju Samson or KL Rahul. These players are already playing IPL for their respective teams. Upon starting you will most likely be prompted for a contract as Captain for IPL and India team. Accept them to unlock "Signed Up" achievement in the process. Now just autogenerate your teams and simulate all matches in IPL and international games that follow. The players performance doesn't matter at all. Make sure to reject every other offer that comes your way to speed things up. Once the season ends and next IPL auction starts your player will be drafted to either the same team he is playing or get picked up by a new team. Either way its guaranteed to unlock at this point and shouldn't take more than ten minutes.

Of course you can pick any other team. As comments say Steve Smith is a good candidate too.