Guys... I got the answer directly from the horses mouth - CBP. Please see below.
CBP INFO Center <firstname.lastname@example.org>
1:29 PM (2 hours ago)
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Hi I have single misdemeanor DUI conviction on my record from 10 Years back. I a...
Response Via Email (CBP Officer)
02/09/2017 01:29 PM
You can re-enter the US with a valid passport and H1B visa. The DUI is not a problem. Please see the 1st link below.
Answer Link: Admission to the U.S. with either a misdemeanor or criminal record
Information for International Visitors to the US
About Visas - The Basics
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We hope our answers ease your entry into the United States. Please understand these answers are informational only, The CBP officer who speaks with you upon arrival determines the admissibility of goods and visitors.
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Customer By Web Form
02/02/2017 11:22 AM
I have single misdemeanor DUI conviction on my record from 10 Years back. I am a legal immigrant on the part to permanent residency. I am currently on H1B and an Indian citizen.
As per information in the CBP website, (https://help.cbp.gov/app/answers/detail/a_id/402/~/entering-the-u.s.-and-canada-with-dui-offenses) a single DUI conviction is not grounds to deny entry into the U.S. I have entered few times into the US with no issues but for a secondary inspection.
I am in fear now. If I had to go to India on a family emergency or death, would I have any problem re-entering.
Appreciate your help in clarifying.