Brahmavaivarta Parana, a work of the early medieval period, raises the
number of the mixed castes to over one hundred.
However, the above theory explains the proliferation of castes (jatis) only
partly. Instead it seems to be an after thought to provide place for the
numerous tribal peoples in the four-fold order. It is obvious that the Nisadas,
Ambasthas, and Pulkasas, were originally tribal communities, but once they
were admitted into the Brahmanical society ingenious origins within the
framework of the varna system were suggested for them, and here the fiction
of mixed castes or varnasamkara came in for handy use.
The following is a list mixed and lowest castes according to Manu. Some
begotten by the first three castes on wives of the next lower castes were
considered similar to their fathers, and did not form new castes.
Father Mother Castes formed
Brahmin Vaishya Ambastha
Brahmin Sudra Nisada
Kshatriya Sudra Urga
Kshatriya Brahmin Suta
Vaishya Brahmin Vaideha
Vaishya Kshatriya Magadha
Sudra Vaishya Ayogava
Sudra Kshatriya Kshattri
Sudra Brahmin Chandala
Brahmin Ugra Avrita
Brahmin Ambastha Abhira
Brahmin Ayogava Dhigvana
Nisada Sudra Pukkusa
Sudra Nisada Kukkutaka
Kshattri Ugra Svapaka
Vaidehika Ambastha Vena
Dasyu Ayogava Sairindhra
Vaideha Ayogava Maitreyaka