S. 143(3): Assessment-Protective assessment-Additional ground-No provision exists in the IT Act giving power to the AO to write a letter to the first appellate authority to consider and treat the protective assessment as a substantive assessment; no protective assessment survives in the absence of a substantive assessment-Legal representative-order of the CIT(A) in making cause title in the automatically generated system data-The mention of deceased assessee’s name in the cause title did not vitiate the order. [S. 131,159, 254(1)]