ANSWER: 2,3
Explanation:
The Indian constitution does not specify the official languages to be used by the states for the conduct of their official functions, and leaves each state free to, through its legislature, adopt Hindi or any language used in its territory as its official language or languages. The language need not be one of those listed in the Eighth Schedule, and several states have adopted official languages which are not so listed. Examples include Kokborok in Tripura; Mizo in Mizoram; Khasi and Garo in Meghalaya; French in Puducherry.