Birds of a feather flock together
coːɾ coːɾ mɔːseːɾeː bʰaːi
In Hindi चोर चोर मौसेरे भाई
This Hindi proverb literally translates to 'Thieves are cousins,' implying that people with similar negative traits or interests tend to associate.
Example
"वे हमेशा साथ रहते हैं, चोर चोर मौसेरे भाई।"