338. Claims of Scheduled Castes and Scheduled Tribes to services and posts. Special provision for Anglo-Indian community in certain services. Special provision with respect to educational grants for the benefit of Anglo-Indian Community. National Commission for Scheduled Castes. 338A. National Commission for Scheduled Tribes. 338B. National Commission for Backward Classes. 339. 341. Control of the Union over the administration of Scheduled Areas and the welfare of Scheduled Tribes. Appointment of a Commission to investigate the conditions of backward classes. Scheduled Castes. 342. Scheduled Tribes. 342A. Socially and educationally backward classes. 335. 336. 337. 340. PART XVII OFFICIAL LANGUAGE 343. CHAPTER I.—LANGUAGE OF THE UNION Official language of the Union. 344. Commission and Committee of Parliament on official language. 345. CHAPTER II. REGIONAL LANGUAGES Official language or languages of a State. 346. 347. 348. Official language for communication between one State and another or between a State and the Union. Special provision relating to language spoken by a section of the population of a State. CHAPTER III.LANGUAGE OF THE SUPREME COURT, HIGH COURTS, ETC. Language to be used in the Supreme Court and in the High Courts and for Acts, Bills, etc. 25