both are belongs to obc category
Yes they r same, but why bother so much about caste system, we all are human. I don't know how one caste gets superior over other caste, I mean, it's not it my blood, it's just a caste, please do not mind my answer. Just told what's in my heart. So don't bother much about caste system, it's 2015, enjoy Bhojpuri song :P
Bhojpuri video Song kaho Jawaniya Achar Dalbu Desi Dance
Some marriages happen between saini/phoolmali and Kushwaha caste in Delhi/Lucknow.
This can be found at: Encyclopedia of Indo-Aryan Research