Engagement of Chartered Accountant Firms for the works related to Assessment Section and License & Permissions Section of NKDA. 1. Zone-A (A Block & B Block). 2. Zone-B (C Block & D Block). 3. Zone-C (IIA, IIB, IIC, IID, IIE, IIF & IIG). 4. Zone-D (IIIA, IIIB, IIIC, IIID, IIIE, IIIF, IIIG, SV & III BLK).