Parts of Mizoram are governed through Sixth Schedule autonomous district councils
Background
Parts of Mizoram are administered by autonomous district councils under the Sixth Schedule of the Constitution of India.
The Siaha district area comes under the Mara Autonomous District Council.
The councils function like mini legislative assemblies with powers to pass their own laws and rules, subject to ratification by the Administrator, who is the Governor of Mizoram.
The Lai Autonomous District Council takes up the education sector within Lawngtlai District up to elementary level.
Schools within Lawngtlai District have Laica as a subject up to Middle School, so that pupils study and better understand the Lai language.
Below the councils the villages are grouped into village councils: the Siaha block has 37 Village Councils and the Tipa block has 41 Village Councils.
Kolasib was upgraded as the headquarters of a sub-division, manned by a Sub-Divisional Officer (Civil), after Mizoram was elevated to a Union Territory.
In plain words
ADC Autonomous District Council — A council set up under the Sixth Schedule to run listed subjects in a tribal area of a north-eastern state.
Laica Lai language as a school subject — The subject taught in Lawngtlai District schools up to Middle School so that pupils understand the Lai language.