Bihar
Yes it did separate from Bihar about 13 years ago
Bihar, Zharkhand, Orissa, Assam
treaty of allahabad
It must be West Bengal and then UP and then Bihar
Bakhtiyar khilji
Santhals. They are in Jharkhand, West Bengal, Bihar and Odisha.
bihar 1102 west bengal 1029
The present governor of Bihar is debanada kunwar
The establishment of British paramountcy along with the diwani(revenue administration) of Bengal, Bihar and Orissa.
Four states constitute East India: West Bengal, Bihar, Jharkhand, and Orissa.
Scheduled caste is not in considered on the basis of just surnames.. scheduteld caste decided on the basis of original caste...the surnames basak or bosak find in Assam, West bengal, bihar states of India. however, all they are having same surnames but belongs to different caste, in west bengal they are belong to Kshatriya and Vaishya,Tantubais, Karmakars etc. in Assam same surnames may be , Bania(Bonia), In Bihar they are bolongs to chaupal caste. Chaupal caste is considered as scheduled caste under Government of Bihar and West Bengal and Bania(Bonia) caste is considered as scheduled caste under Government of Assam however other caste such Vaishaya etc is considered as OBC in West bengal, Bihar or in Assam..