taxability of quizz income

i won rs 25000 in quiz. they deduct tds 30% on such income and paid rs 17100 to me. but when they submit form 16A to me they had shown amount paid rs 28000 to me and depoist tds rs 8400 with the Central govt. is there any remedy to claim balance 2500(19600-17100).
second can i took refund of rs 8400 by filling itr or this is taxable income as i do not have any other income.