Chandra is not a caste. But many Vaisya and Kayasth use this as surname. It is more like a middle name. Like Kumar. But Vaisya and Kayasth in U.P. are using it to disguise their caste and get reservation benefit as O.B.C.
It is same in Bihar, there also Vaisya(Bania) are using kUMAR(not a surname but middle name) to hide their upper caste identity and get reservation benefit under O.B.C. Only difference is in U.P. very few lower caste in U.P. use Chadra so it is easy to tell they are upper caste but in Bihar lots of lower cast use Kumar so it is very hard to tell persons caste.
Chand is a jatt surname. Also, in West Bengal there are variants of Chand (Chand,Chanda,Chandra) they all are Kayastha.
Khetale is a surname of Maratha caste.
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