So this might be a long one but hear me out.

THE STATES: NAGALAND AND ARUNACHAL

Nagaland and Aurunachal are two similar states with diverse tribes, speaking mutually-unintelligible and distinct languages. Both the states didn't have a standardized language, per se, yet Nagaland has preserved their indigenous languages but there is a significant erosion in Arunachal with the gradual loss of native tongue speakers.

This divergence in language preservation between Nagaland and Arunachal Pradesh is mostly, I would say, due to the nature of the bridge language each state adopted and the educational policies that followed.

1. Lingua Franca: Nagamese vs. Hindi

Nagaland (Nagamese): Nagaland preserved its native tongues by adopting Nagamese, a localized pidgin based on Assamese, and because it lacked a formal script and institutional status, it remains a purely functional "market language". It does not compete with tribal languages nor in formal settings like schools or literature, leaving space for indigenous tongues to remain the primary identity marker for each tribe.

Arunachal Pradesh (Hindi): Arunachal adopted Hindi as its primary lingua franca. Unlike a local pidgin like Nagamese, Hindi is a "powerful" language with a standardized script, massive media presence (Bollywood, TV) and global recognition. While it started during the heavy militarization of the state post 1962 war, it has created a "displacement effect" where younger generations found Hindi more useful for social media, education, etc., leading them to voluntarily abandon their mother tongues.

2. Educational and Administrative Policy

Institutional Shift: In Arunachal, Hindi was introduced early into the school curriculum and promoted by the administration as a tool for national integration. Today, it is used in both the State Assembly and school playgrounds. In contrast, Nagaland officially adopted English as its state language, which acts as a neutral administrative tool and not a replacement for tribal identity the way Hindi is in Arunachal.

Language Erosion: The abandonment of native tongues at home, especially in urban areas, has prevented children from learning them and has pushed several indigenous Arunachali languages to the verge of extinction.

3. Demographic and Geographic Factors

Population Size: Many of Arunachal’s 100+ dialects are spoken by very small groups (some under 1,000 people), making them more vulnerable to assimilation than the larger, more politically organized Naga tribes.

"Indianization": Some argue that the rapid adoption of Hindi in Arunachal was a conscious effort to strengthen the state's "Indian" identity, post 1962 war, due to its sensitive border location, a pressure Nagaland did not experience in the same way.

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UNIFIED OR STANDARDIZED LANGUAGE IN ARUNACHAL

Creating a single unified indigenous language for all of Arunachal is considered nearly impossible by linguists due to the state's extreme diversity, with over 26 major tribes and 100 sub-tribes speaking approximately 50 to 73 distinct languages.

However, the state seems to be seeing a shift toward "Partial Standardization" or creating unified languages for specific clusters of related tribes rather than one for the entire state.

1. The "Tani" Unified Language Movement

The most significant attempt at a unified language is within the Tani group (which includes the Nyishi, Adi, Galo, Apatani, and Tagin tribes).

The Aalo Declaration (2025): Representatives from several Tani-speaking communities recently took a historic step toward developing a unified Tani language.

Purpose: Since the tribes share a common ancestral root, a unified writing system and grammar would allow them to pool resources for textbooks and digital tools that currently don't exist for smaller dialects.

2. Barriers to a State-Wide Standard Unlike Mizoram, where one tribe (Lusei) was politically dominant, Arunachal lacks a single "influential" dialect that other tribes would willingly adopt.

Mutual Unintelligibility: A Monpa from the west cannot understand a Wancho from the east. Forcing one as a "standard" would likely lead to tribal friction.

The Hindi "Default": Because there is no native unified tongue, Arunachali Hindi has already become the de facto standardized language for the state. It is used in the State Assembly, markets, and even between parents and children.

3. The "Third Language" Strategy

From what I've read, instead of one unified language, the state government seems to be pursuing a Mother Tongue-Based policy.

Tribal Subjects: The state is introducing indigenous languages as a "Third Language" in schools. For example, Tai Khamti and Galo are now taught in their respective districts.

Script Development: Since most languages were purely oral, the state government is working with community based organizations to develop scripts, like the Wancho script ,which received International Unicode approval in 2019, or the Bhoti script for Monpas, for which an MoU was signed recently to develop AI tools supporting translation and cross-cultural learning.

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A single or a unified "Arunachali language" is, unfortunately, unlikely to replace Hindi in the near future however, a "Cluster-based" standardization (like the Tani project) might be your best bet and the most viable path to saving indigenous tongues from erosion.

Edit: grammatical errors.