I do not know if many Asian Indians live in the areas in which you are interested.
If you plan to buy, I would not choose Pinnacle Gardens. There are many empty houses and most of those are for lease because they aren't selling (they have been for sale for 2-3 years). Pinnacle Gardens also does not have any amenities which doesn't leave much for a family who is new and trying to meet others. This neighborhood is also small in that it only has two streets.
Shadow Valley has lots of families with young children. Shadow Valley also offers golf, tennis, swimming, a clubhouse with a restaurant and activities.
Pinnacle Gardens and Shadow Valley children attend Central Park Elementary in Bentonville. Bentonville only has one high school, so all students in the district attend. B-ville schools are good. Central Park does tend to have a waiting list, so definitely do your research.
Pinnacle Country Club might be another option. It is in the same part of town and it is similar to Shadow Valley in that the amenities are the exact same and there are many young families. Pinnacle is split in that about half the neighborhood is in the Rogers district and the other half is in B-ville. Those that live on the Rogers side attend Bellview Elementary - also a good school.
Although mostly in the Bentonville school district, all these neighborhoods are located within the city limits of Rogers. Pinnacle and Shadow Valley are country clubs and will require you to mantain a membership; Pinnacle Gardens is just a neighborhood and won't require much beyond possible POA dues.
Some websites that might be helpful:
www.shadowvalleyinfo.com (Shadow Valley)
www.pinnalcecc.com (Pinnacle Country Club)
www.rogers.k12.ar.us (Rogers Schools)
www.bentonville.k12.ar.us (Bentonville Schools)
*I don't know of one for Pinnacle Gardens