Answer : 1. "Sansi "
Explanation :

1. Bija and Mala sub-castes are sub-castes belonging to the Sansi tribe.

2. They have a dual organization and are divided into branches called 'Bija' and 'Mala', both intermarry with each other and not with each other.

3. Most of them follow the Hindu religion.

4. Their language is Sansiboli or Bhilki.

5. During British rule, they were placed under the Criminal Tribes Act 1871, so they have suffered this stigma for a long time.