Bengaluru police commissioner T Suneel Kumar said the gang members used to frequently travel to Bengaluru by plane.
They would roam around the city in two-wheelers andsnatch gold necklaces from women in secluded places, he said.
After staying for a short while, they would go back to their home town, he said.
During an interrogation they revealed that they chose south India because there is a huge craze for gold among womenand everybody wears 'mangal sutra', he said.
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The accused have been identified as Jai Prakash alias Varun Kumar, Nitin Kumar, Jitendra Kumar, Kapil Kumar, andNand Kishore.
While four were in their early twenties, NandKishore was 33-years-old, he said.
Two more members of their gang are absconding, Kumar said.