7007, 1507: The Curious Case Of Rajasthan's 'Numbered' Gangs
Vijay Bajiya, who was murdered in Jaipur, named his gang 1507 after his birthday. The 7007 gang, on the other hand, took its name from the number plates of its members' vehicles.
We haven't written up this one. NDTV has the full story — the link below goes straight to it.