Since you've mistakenly set up a trial QuickBooks Online (QBO) account for India, you can consider canceling it. And set up for a trial account for the US version. This way, your home currency will default to US and state selections.
Here's how to cancel your trial QBO account:
Sign in to your QBO account.
Click the Gear icon, then select Account and Settings.
Go to the Billing and Subscription menu.
In the QuickBooks tiles, click Cancel your trial.
Select Continue to cancel to confirm.
Follow the on-screen instruction, then select Submit and cancel subscription.