Given the diversities among tribal communities in India, in which specific contexts should they be considered as a single category?

भारत के जनजातीय समुदायों की विविधताओं को देखते हुए किस विशिष्ट सन्दर्भ के अन्तर्गत उन्हें किसी एकल श्रेणी में माना जाना चाहिए ? (150 words)
Given the diversities among tribal communities in India, in which specific contexts should they be considered as a single category? (150 words)