Which of the following languages is NOT a part of the Dravidian language family?

India's languages are classified into major language families based on shared origin and grammatical structure. The two largest are the Indo-European family (its Indo-Aryan branch dominates North, West, and East India and evolved from Sanskrit/Prakrit) and the Dravidian family (concentrated in South India, comprising four major literary languages — Tamil, Telugu, Kannada, and Malayalam — distinguished by agglutinative grammar and a vocabulary largely independent of Sanskrit).

Checking each option against these two families:

• Kannada — spoken mainly in Karnataka; one of the four major Dravidian languages, with its own script and a classical literary tradition over a thousand years old.

• Telugu — spoken mainly in Andhra Pradesh and Telangana; one of the four major Dravidian languages, sharing Dravidian grammar and case structure.

• Malayalam — spoken mainly in Kerala; one of the four major Dravidian languages, historically evolved from Old Tamil.

• Assamese — spoken mainly in Assam; descends from Magadhi Prakrit and belongs to the Indo-Aryan branch of the Indo-European family, the same lineage as Bengali, Odia, and Hindi — NOT the Dravidian family.

This is confirmed independently by script and vocabulary lineage: Assamese shares a common script with Bengali (both descended from the Eastern Nagari script) and shares core Indo-Aryan vocabulary with Bengali and Odia, all three tracing back to Sanskrit/Prakrit. Kannada, Telugu, and Malayalam, in contrast, each use their own scripts historically derived from the ancient Brahmi family used across South India, and are classified together under Proto-Dravidian ancestry rather than Sanskrit-derived Indo-Aryan roots. Hence Assamese is confirmed as the one language NOT part of the Dravidian family.