1. Stable two parent home - my parents lived together and shielded us from any arguments/disagreements they had and presented a stable unified upbringing
2. My father had a degree in Microbiology, but when he first migrated had to take a less paying job due to language/racism. My mother had a high school education. My father eventually ended up in a top research company and my mother got a masters in computer science from the local state university. This example ingrained the merits of grit and hard work
3. Education - specifically math and science - were emphasized in my family over sports, social and other activities. This was very different then my friends.
4. Academic expectations were extremely high - in my family strait As was baseline.
5. Family and community support - we had strong support from other immigrant indian community growing up. And the community as a whole valued the same things as my family.
These traits can be replicated in non immigrant American society - but often it is not. The main difference I see is a lack of a strong family unit and acceptance of low academic standards.
This could be just my experience - would be interested in hearing others