Hello Khushi,
Thank you for posting in Q&A forum.
You can try the steps below:
1.Right click OU and select Delegate Control and click Next.
2.Add the user, such as user1 and click Next.

3.Click "Create a custom task to delegate" and click Next.

4.Click "Only the following objects in the folder" and check the "user objects" and click Next.

5.Check the options below:
General
Property-specific
Creation/deletion of specific child objects.
Change password
Reset password

6.Check if you can reset/change the password within the OU using the account you set.
I hope the information above is helpful.
If you have any questions or concerns, please feel free to let us know.
Best Regards,
Daisy Zhou
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