Fill in the blanks :
(a) The new castes emerging within vamas 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 ..............
State whether true or false :
(a) Tribal societies had rich oral traditions.
(b) There were no tribal communities in the north-western part of the subcontinent.
(c) The chaurasi in Gond states contained several cities.
(d) The Bhils lived in the north-eastern part of the subcontinent.
Find out more about present-day nomadic pastoral groups in the subcontinent. What animals do they keep? Which are the areas frequented by these groups?