S. 153C : Assessment-Income of any other person-Search-Insolvency and Bankruptcy Code, 2016-Resolution Plan-Extinguishment of dues-Once a resolution plan is approved by the NCLT, all claims not part of the plan, including statutory dues for the pre-CIRP period, stand extinguished-The Revenue cannot initiate or continue proceedings for such a period post-approval. [S.. 132,. 133, 142(1), 143(2), 143(3) Insolvency and Bankruptcy Code, 2016, 31]