hi,

See the eligibility criteria to apply for staff selection commission JHT post is as follows:

Candidates must have completed a  master degree from a government-approved university and Diploma or Certificate course in translation from Hindi to English & vice versa from a recognized institute or two years experience in Hindi to English translation and vice-versa in Central or State Government Office, including Government of India Undertaken organizations.

however you may apply for m.a in hindi and it would fulfill your criteria to apply for JHT post. you are not eligible to apply for m.a In english since the eligibility criteria for top most institute is Candidates who have pursued a BA in English or equivalent degree with a minimum overall aggregate of 50% are eligible to apply for M.A in english.

hope you understand.