Eastern saris:
In North-Eastern
India (West Bengal, Orissa and some parts of Madhya Pradesh) and
in Bangladesh, women wear drapes clearly related to Dravidian
saris. Although these Eastern saris have no kosu, the rest of
the drape is practically the same. 
All the Eastern saris start in a similar
way, with a veshti-like bottom and the upper part being thrown
over the shoulder in the same way than with a pinkosu. Differences
are mostly in the manner the mundanai (the upper part of the sari)
is draped.
Left: a Bengali sari.
Right: the drape of the Oriya sari.
Far right: The Rajim sari, worn by low-caste and tribal women in southern Madhya Pradesh.