Class 7 Social Science Chapter "Tribes, Nomads and Settled Communities" Fill in the blanks:
(a) The new castes emerging within varnas were called ____________.
(b) ____________ were historical works written by the Ahoms.
(c) The ______________ mentions that Garha Katanga had 70,000 villages.
(d) As tribal states became bigger and stronger, they gave land grants to __________ and ___________.