Please refer to decision of Hon'ble Supreme Court in the case of Commissioner v Mahindra and Mahindra Limited = 2018 (5) TMI 358 - SUPREME COURT where it was held not taxable in section 28(iv) and 41(1).
As far as section 56(2)(x) is concerned, it talks of
(1) any sum of money - waiver can be equated with money since actual money was received in the year of taking loan
(2) received in previous year - At the most it can be taxed in the year in which the amount was received. By the time it comes to notice of IT department, period of issue of notice u/s 148 ,must be over.
CA Susheel Gupta
9811004443