Official language in Courts:

Underlining the need to “encourage the use of local languages in courts” since a large section of the country’s population “finds it difficult to understand the judicial process and rulings of the court,” Prime Minister Narendra Modi recently
said that such a move would help the common man relate to the judiciary.

What the Constitution says?
Article 348 (1) of the Constitution of India provides that all proceedings in the
Supreme Court and in every High court shall be in English Language until Parliament by law otherwise provides.

Under Article 348 (2), the Governor of the State may, with the previous consent of the President, authorize the use of the Hindi language or any other language used for any official purpose of the State, in the proceedings of the High Court
having its principal seat in that State provided that decrees, judgments or orders passed by such High Courts shall be in English

Section 7 of the Official Languages Act, 1963, provides that the use of Hindi or
official language of a State in addition to the English language may be authorized,with the consent of the President of India, by the Governor of the State for purpose of judgments etc. made by the High Court for that State.
The provision of optional use of Hindi in proceedings has already been made in
the High Courts of Rajasthan, Uttar Pradesh, Madhya Pradesh and Bihar.

Language of Subordinate Courts:
The language of all courts subordinate to High Courts generally remains the
same as the language on the commencement of the Civil Procedure Code 1908,
till the state government determines.