I think 25% of 453 will be deducted, ie, 113.25. Service tax of 17 rupees will be refunded fully. But, service tax of 3.708% will be again cut on amount deducted, which is 3.708% of 113.25 = 4.20 rupees. So, total deduction will be 113.25+4.20 = 118 rupees.
Could somebody confirm pls?