Now after the decision of Mumbai high-court in favour of the petitioner the UPSC has announced to adopt a new model in which a candidate appearing for the Viva can opt same language or any language other than written examination. But the language should be opted from the list of the language mentioned in eight schedule of the Indian Constitution.
After the above decision an expert-committee has been constituted by UPSC and according to its recommendations the forms for the mains(written) exam are being prepared for the year 2010.
Till now English was the compulsory language for the personality test(Interview). But now if aspirants are writing their exam in english can opt any language including Hindi for their Interview.
Recently UPSC has adapted the new pattern of exam calling Civil Services Aptitude Test(CSAT). Now there are only two exams- one for General Knowledge and second for Aptitude test.
The new move of the UPSC is also helpful for a large section of the aspirants including the aspirants appearing from Hindi Medium.